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Finding the Fourth Proportional to 99,573.50, 137,348.66 and 59,257.17

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Solution

The fourth proportional to 99,573.50, 137,348.66 and 59,257.17 is: 81,737.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.50 : 137,348.66 = 59,257.17 : x
  2. Step 2: Convert to fraction form
    99,573.50/137,348.66 = 59,257.17/x
  3. Step 3: Cross multiply
    99,573.50x = 137,348.66 × 59,257.17
  4. Step 4: Simplify right side
    99,573.50x = 8,138,893,043.04
  5. Step 5: Solve for x
    x = 8,138,893,043.04/99,573.50
  6. Step 6: Final answer
    x = 81,737.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.