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Finding the Fourth Proportional to 61,808.10, 92,712.12 and 58,652.66

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Solution

The fourth proportional to 61,808.10, 92,712.12 and 58,652.66 is: 87,978.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,808.10 : 92,712.12 = 58,652.66 : x
  2. Step 2: Convert to fraction form
    61,808.10/92,712.12 = 58,652.66/x
  3. Step 3: Cross multiply
    61,808.10x = 92,712.12 × 58,652.66
  4. Step 4: Simplify right side
    61,808.10x = 5,437,812,452.24
  5. Step 5: Solve for x
    x = 5,437,812,452.24/61,808.10
  6. Step 6: Final answer
    x = 87,978.96

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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.