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Finding the Fourth Proportional to 159,513.47, 239,187.42 and 47,178.92

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Solution

The fourth proportional to 159,513.47, 239,187.42 and 47,178.92 is: 70,743.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,513.47 : 239,187.42 = 47,178.92 : x
  2. Step 2: Convert to fraction form
    159,513.47/239,187.42 = 47,178.92/x
  3. Step 3: Cross multiply
    159,513.47x = 239,187.42 × 47,178.92
  4. Step 4: Simplify right side
    159,513.47x = 11,284,602,957.25
  5. Step 5: Solve for x
    x = 11,284,602,957.25/159,513.47
  6. Step 6: Final answer
    x = 70,743.89

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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.