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Finding the Fourth Proportional to 99,005.96, 148,472.22 and 39,821.42

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Solution

The fourth proportional to 99,005.96, 148,472.22 and 39,821.42 is: 59,717.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,005.96 : 148,472.22 = 39,821.42 : x
  2. Step 2: Convert to fraction form
    99,005.96/148,472.22 = 39,821.42/x
  3. Step 3: Cross multiply
    99,005.96x = 148,472.22 × 39,821.42
  4. Step 4: Simplify right side
    99,005.96x = 5,912,374,630.95
  5. Step 5: Solve for x
    x = 5,912,374,630.95/99,005.96
  6. Step 6: Final answer
    x = 59,717.36

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1.5x scale

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.