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Finding the Fourth Proportional to 158,658.50, 237,988.49 and 53,478.38

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Solution

The fourth proportional to 158,658.50, 237,988.49 and 53,478.38 is: 80,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,658.50 : 237,988.49 = 53,478.38 : x
  2. Step 2: Convert to fraction form
    158,658.50/237,988.49 = 53,478.38/x
  3. Step 3: Cross multiply
    158,658.50x = 237,988.49 × 53,478.38
  4. Step 4: Simplify right side
    158,658.50x = 12,727,237,446.51
  5. Step 5: Solve for x
    x = 12,727,237,446.51/158,658.50
  6. Step 6: Final answer
    x = 80,217.81

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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.