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Finding the Fourth Proportional to 118,697.75, 163,776.69 and 70,275.62

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Solution

The fourth proportional to 118,697.75, 163,776.69 and 70,275.62 is: 96,964.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,697.75 : 163,776.69 = 70,275.62 : x
  2. Step 2: Convert to fraction form
    118,697.75/163,776.69 = 70,275.62/x
  3. Step 3: Cross multiply
    118,697.75x = 163,776.69 × 70,275.62
  4. Step 4: Simplify right side
    118,697.75x = 11,509,508,840.74
  5. Step 5: Solve for x
    x = 11,509,508,840.74/118,697.75
  6. Step 6: Final answer
    x = 96,964.85

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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.