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Finding the Fourth Proportional to 92,403.90, 129,627.90 and 92,403.90

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Solution

The fourth proportional to 92,403.90, 129,627.90 and 92,403.90 is: 129,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,403.90 : 129,627.90 = 92,403.90 : x
  2. Step 2: Convert to fraction form
    92,403.90/129,627.90 = 92,403.90/x
  3. Step 3: Cross multiply
    92,403.90x = 129,627.90 × 92,403.90
  4. Step 4: Simplify right side
    92,403.90x = 11,978,123,508.81
  5. Step 5: Solve for x
    x = 11,978,123,508.81/92,403.90
  6. Step 6: Final answer
    x = 129,627.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.