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Finding the Fourth Proportional to 48,285.88, 72,276.28 and 43,207.90

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Solution

The fourth proportional to 48,285.88, 72,276.28 and 43,207.90 is: 64,675.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,285.88 : 72,276.28 = 43,207.90 : x
  2. Step 2: Convert to fraction form
    48,285.88/72,276.28 = 43,207.90/x
  3. Step 3: Cross multiply
    48,285.88x = 72,276.28 × 43,207.90
  4. Step 4: Simplify right side
    48,285.88x = 3,122,906,278.61
  5. Step 5: Solve for x
    x = 3,122,906,278.61/48,285.88
  6. Step 6: Final answer
    x = 64,675.35

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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.