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Finding the Fourth Proportional to 92,528.40, 138,857.40 and 59,329.20

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Solution

The fourth proportional to 92,528.40, 138,857.40 and 59,329.20 is: 89,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,528.40 : 138,857.40 = 59,329.20 : x
  2. Step 2: Convert to fraction form
    92,528.40/138,857.40 = 59,329.20/x
  3. Step 3: Cross multiply
    92,528.40x = 138,857.40 × 59,329.20
  4. Step 4: Simplify right side
    92,528.40x = 8,238,298,456.08
  5. Step 5: Solve for x
    x = 8,238,298,456.08/92,528.40
  6. Step 6: Final answer
    x = 89,035.35

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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.