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Finding the Fourth Proportional to 80,463.42, 120,602.25 and 59,085.90

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Solution

The fourth proportional to 80,463.42, 120,602.25 and 59,085.90 is: 88,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,463.42 : 120,602.25 = 59,085.90 : x
  2. Step 2: Convert to fraction form
    80,463.42/120,602.25 = 59,085.90/x
  3. Step 3: Cross multiply
    80,463.42x = 120,602.25 × 59,085.90
  4. Step 4: Simplify right side
    80,463.42x = 7,125,892,483.28
  5. Step 5: Solve for x
    x = 7,125,892,483.28/80,463.42
  6. Step 6: Final answer
    x = 88,560.65

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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.