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Finding the Fourth Proportional to 192,030.60, 288,045.90 and 125,545.80

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Solution

The fourth proportional to 192,030.60, 288,045.90 and 125,545.80 is: 188,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,030.60 : 288,045.90 = 125,545.80 : x
  2. Step 2: Convert to fraction form
    192,030.60/288,045.90 = 125,545.80/x
  3. Step 3: Cross multiply
    192,030.60x = 288,045.90 × 125,545.80
  4. Step 4: Simplify right side
    192,030.60x = 36,162,952,952.22
  5. Step 5: Solve for x
    x = 36,162,952,952.22/192,030.60
  6. Step 6: Final answer
    x = 188,318.70

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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.