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Finding the Fourth Proportional to 52,248.90, 78,373.35 and 38,943.30

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Solution

The fourth proportional to 52,248.90, 78,373.35 and 38,943.30 is: 58,414.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,248.90 : 78,373.35 = 38,943.30 : x
  2. Step 2: Convert to fraction form
    52,248.90/78,373.35 = 38,943.30/x
  3. Step 3: Cross multiply
    52,248.90x = 78,373.35 × 38,943.30
  4. Step 4: Simplify right side
    52,248.90x = 3,052,116,881.06
  5. Step 5: Solve for x
    x = 3,052,116,881.06/52,248.90
  6. Step 6: Final answer
    x = 58,414.95

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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.