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Finding the Fourth Proportional to 169,120.72, 233,386.08 and 93,669.20

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Solution

The fourth proportional to 169,120.72, 233,386.08 and 93,669.20 is: 129,263.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,120.72 : 233,386.08 = 93,669.20 : x
  2. Step 2: Convert to fraction form
    169,120.72/233,386.08 = 93,669.20/x
  3. Step 3: Cross multiply
    169,120.72x = 233,386.08 × 93,669.20
  4. Step 4: Simplify right side
    169,120.72x = 21,861,087,404.74
  5. Step 5: Solve for x
    x = 21,861,087,404.74/169,120.72
  6. Step 6: Final answer
    x = 129,263.21

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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.