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Finding the Fourth Proportional to 61,886.18, 92,760.15 and 56,904.14

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Solution

The fourth proportional to 61,886.18, 92,760.15 and 56,904.14 is: 85,292.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,886.18 : 92,760.15 = 56,904.14 : x
  2. Step 2: Convert to fraction form
    61,886.18/92,760.15 = 56,904.14/x
  3. Step 3: Cross multiply
    61,886.18x = 92,760.15 × 56,904.14
  4. Step 4: Simplify right side
    61,886.18x = 5,278,436,562.02
  5. Step 5: Solve for x
    x = 5,278,436,562.02/61,886.18
  6. Step 6: Final answer
    x = 85,292.65

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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.