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Finding the Fourth Proportional to 192,055.68, 288,456.96 and 156,543.05

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Solution

The fourth proportional to 192,055.68, 288,456.96 and 156,543.05 is: 235,118.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,055.68 : 288,456.96 = 156,543.05 : x
  2. Step 2: Convert to fraction form
    192,055.68/288,456.96 = 156,543.05/x
  3. Step 3: Cross multiply
    192,055.68x = 288,456.96 × 156,543.05
  4. Step 4: Simplify right side
    192,055.68x = 45,155,930,869.84
  5. Step 5: Solve for x
    x = 45,155,930,869.84/192,055.68
  6. Step 6: Final answer
    x = 235,118.96

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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.