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Finding the Fourth Proportional to 85,594.76, 118,153.20 and 76,626.20

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Solution

The fourth proportional to 85,594.76, 118,153.20 and 76,626.20 is: 105,773.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,594.76 : 118,153.20 = 76,626.20 : x
  2. Step 2: Convert to fraction form
    85,594.76/118,153.20 = 76,626.20/x
  3. Step 3: Cross multiply
    85,594.76x = 118,153.20 × 76,626.20
  4. Step 4: Simplify right side
    85,594.76x = 9,053,630,733.84
  5. Step 5: Solve for x
    x = 9,053,630,733.84/85,594.76
  6. Step 6: Final answer
    x = 105,773.19

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.