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Finding the Fourth Proportional to 92,465.70, 138,617.55 and 62,787.30

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Solution

The fourth proportional to 92,465.70, 138,617.55 and 62,787.30 is: 94,125.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,465.70 : 138,617.55 = 62,787.30 : x
  2. Step 2: Convert to fraction form
    92,465.70/138,617.55 = 62,787.30/x
  3. Step 3: Cross multiply
    92,465.70x = 138,617.55 × 62,787.30
  4. Step 4: Simplify right side
    92,465.70x = 8,703,421,697.12
  5. Step 5: Solve for x
    x = 8,703,421,697.12/92,465.70
  6. Step 6: Final answer
    x = 94,125.95

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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.