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Finding the Fourth Proportional to 193,614.78, 290,411.72 and 60,479.76

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Solution

The fourth proportional to 193,614.78, 290,411.72 and 60,479.76 is: 90,716.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,614.78 : 290,411.72 = 60,479.76 : x
  2. Step 2: Convert to fraction form
    193,614.78/290,411.72 = 60,479.76/x
  3. Step 3: Cross multiply
    193,614.78x = 290,411.72 × 60,479.76
  4. Step 4: Simplify right side
    193,614.78x = 17,564,031,126.79
  5. Step 5: Solve for x
    x = 17,564,031,126.79/193,614.78
  6. Step 6: Final answer
    x = 90,716.38

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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.