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Finding the Fourth Proportional to 123,059.08, 169,821.54 and 66,470.46

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Solution

The fourth proportional to 123,059.08, 169,821.54 and 66,470.46 is: 91,729.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,059.08 : 169,821.54 = 66,470.46 : x
  2. Step 2: Convert to fraction form
    123,059.08/169,821.54 = 66,470.46/x
  3. Step 3: Cross multiply
    123,059.08x = 169,821.54 × 66,470.46
  4. Step 4: Simplify right side
    123,059.08x = 11,288,115,881.71
  5. Step 5: Solve for x
    x = 11,288,115,881.71/123,059.08
  6. Step 6: Final answer
    x = 91,729.24

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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.