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Finding the Fourth Proportional to 76,751.60, 114,587.74 and 58,645.07

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Solution

The fourth proportional to 76,751.60, 114,587.74 and 58,645.07 is: 87,555.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,751.60 : 114,587.74 = 58,645.07 : x
  2. Step 2: Convert to fraction form
    76,751.60/114,587.74 = 58,645.07/x
  3. Step 3: Cross multiply
    76,751.60x = 114,587.74 × 58,645.07
  4. Step 4: Simplify right side
    76,751.60x = 6,720,005,893.59
  5. Step 5: Solve for x
    x = 6,720,005,893.59/76,751.60
  6. Step 6: Final answer
    x = 87,555.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.