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Finding the Fourth Proportional to 110,902.60, 153,045.42 and 63,155.97

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Solution

The fourth proportional to 110,902.60, 153,045.42 and 63,155.97 is: 87,155.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,902.60 : 153,045.42 = 63,155.97 : x
  2. Step 2: Convert to fraction form
    110,902.60/153,045.42 = 63,155.97/x
  3. Step 3: Cross multiply
    110,902.60x = 153,045.42 × 63,155.97
  4. Step 4: Simplify right side
    110,902.60x = 9,665,731,954.16
  5. Step 5: Solve for x
    x = 9,665,731,954.16/110,902.60
  6. Step 6: Final answer
    x = 87,155.14

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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.