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Finding the Fourth Proportional to 92,536.40, 138,869.40 and 59,337.20

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Solution

The fourth proportional to 92,536.40, 138,869.40 and 59,337.20 is: 89,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,536.40 : 138,869.40 = 59,337.20 : x
  2. Step 2: Convert to fraction form
    92,536.40/138,869.40 = 59,337.20/x
  3. Step 3: Cross multiply
    92,536.40x = 138,869.40 × 59,337.20
  4. Step 4: Simplify right side
    92,536.40x = 8,240,121,361.68
  5. Step 5: Solve for x
    x = 8,240,121,361.68/92,536.40
  6. Step 6: Final answer
    x = 89,047.35

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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.