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Finding the Fourth Proportional to 125,059.49, 172,581.08 and 67,697.65

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Solution

The fourth proportional to 125,059.49, 172,581.08 and 67,697.65 is: 93,422.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,059.49 : 172,581.08 = 67,697.65 : x
  2. Step 2: Convert to fraction form
    125,059.49/172,581.08 = 67,697.65/x
  3. Step 3: Cross multiply
    125,059.49x = 172,581.08 × 67,697.65
  4. Step 4: Simplify right side
    125,059.49x = 11,683,332,884.16
  5. Step 5: Solve for x
    x = 11,683,332,884.16/125,059.49
  6. Step 6: Final answer
    x = 93,422.20

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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.