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Finding the Fourth Proportional to 192,545.17, 288,867.17 and 80,188.05

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Solution

The fourth proportional to 192,545.17, 288,867.17 and 80,188.05 is: 120,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,545.17 : 288,867.17 = 80,188.05 : x
  2. Step 2: Convert to fraction form
    192,545.17/288,867.17 = 80,188.05/x
  3. Step 3: Cross multiply
    192,545.17x = 288,867.17 × 80,188.05
  4. Step 4: Simplify right side
    192,545.17x = 23,163,695,071.32
  5. Step 5: Solve for x
    x = 23,163,695,071.32/192,545.17
  6. Step 6: Final answer
    x = 120,302.65

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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.