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Finding the Fourth Proportional to 107,030.20, 160,545.30 and 100,469.20

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Solution

The fourth proportional to 107,030.20, 160,545.30 and 100,469.20 is: 150,703.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,030.20 : 160,545.30 = 100,469.20 : x
  2. Step 2: Convert to fraction form
    107,030.20/160,545.30 = 100,469.20/x
  3. Step 3: Cross multiply
    107,030.20x = 160,545.30 × 100,469.20
  4. Step 4: Simplify right side
    107,030.20x = 16,129,857,854.76
  5. Step 5: Solve for x
    x = 16,129,857,854.76/107,030.20
  6. Step 6: Final answer
    x = 150,703.80

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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.