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Finding the Fourth Proportional to 99,058.98, 148,582.98 and 72,432.27

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Solution

The fourth proportional to 99,058.98, 148,582.98 and 72,432.27 is: 108,644.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,058.98 : 148,582.98 = 72,432.27 : x
  2. Step 2: Convert to fraction form
    99,058.98/148,582.98 = 72,432.27/x
  3. Step 3: Cross multiply
    99,058.98x = 148,582.98 × 72,432.27
  4. Step 4: Simplify right side
    99,058.98x = 10,762,202,524.76
  5. Step 5: Solve for x
    x = 10,762,202,524.76/99,058.98
  6. Step 6: Final answer
    x = 108,644.39

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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.