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Finding the Fourth Proportional to 159,618.69, 239,463.27 and 47,307.87

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Solution

The fourth proportional to 159,618.69, 239,463.27 and 47,307.87 is: 70,972.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,618.69 : 239,463.27 = 47,307.87 : x
  2. Step 2: Convert to fraction form
    159,618.69/239,463.27 = 47,307.87/x
  3. Step 3: Cross multiply
    159,618.69x = 239,463.27 × 47,307.87
  4. Step 4: Simplify right side
    159,618.69x = 11,328,497,246.93
  5. Step 5: Solve for x
    x = 11,328,497,246.93/159,618.69
  6. Step 6: Final answer
    x = 70,972.25

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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.