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Finding the Fourth Proportional to 123,025.74, 169,775.52 and 66,437.11

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Solution

The fourth proportional to 123,025.74, 169,775.52 and 66,437.11 is: 91,683.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,025.74 : 169,775.52 = 66,437.11 : x
  2. Step 2: Convert to fraction form
    123,025.74/169,775.52 = 66,437.11/x
  3. Step 3: Cross multiply
    123,025.74x = 169,775.52 × 66,437.11
  4. Step 4: Simplify right side
    123,025.74x = 11,279,394,897.55
  5. Step 5: Solve for x
    x = 11,279,394,897.55/123,025.74
  6. Step 6: Final answer
    x = 91,683.21

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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.