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Finding the Fourth Proportional to 92,686.31, 139,027.53 and 29,510.79

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Solution

The fourth proportional to 92,686.31, 139,027.53 and 29,510.79 is: 44,265.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,686.31 : 139,027.53 = 29,510.79 : x
  2. Step 2: Convert to fraction form
    92,686.31/139,027.53 = 29,510.79/x
  3. Step 3: Cross multiply
    92,686.31x = 139,027.53 × 29,510.79
  4. Step 4: Simplify right side
    92,686.31x = 4,102,812,788.15
  5. Step 5: Solve for x
    x = 4,102,812,788.15/92,686.31
  6. Step 6: Final answer
    x = 44,265.57

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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.