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Finding the Fourth Proportional to 84,402.59, 126,463.30 and 59,390.08

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Solution

The fourth proportional to 84,402.59, 126,463.30 and 59,390.08 is: 88,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,402.59 : 126,463.30 = 59,390.08 : x
  2. Step 2: Convert to fraction form
    84,402.59/126,463.30 = 59,390.08/x
  3. Step 3: Cross multiply
    84,402.59x = 126,463.30 × 59,390.08
  4. Step 4: Simplify right side
    84,402.59x = 7,510,665,039.43
  5. Step 5: Solve for x
    x = 7,510,665,039.43/84,402.59
  6. Step 6: Final answer
    x = 88,986.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.