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Finding the Fourth Proportional to 191,124.80, 285,074.60 and 165,967.02

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Solution

The fourth proportional to 191,124.80, 285,074.60 and 165,967.02 is: 247,550.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,124.80 : 285,074.60 = 165,967.02 : x
  2. Step 2: Convert to fraction form
    191,124.80/285,074.60 = 165,967.02/x
  3. Step 3: Cross multiply
    191,124.80x = 285,074.60 × 165,967.02
  4. Step 4: Simplify right side
    191,124.80x = 47,312,981,839.69
  5. Step 5: Solve for x
    x = 47,312,981,839.69/191,124.80
  6. Step 6: Final answer
    x = 247,550.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.