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Finding the Fourth Proportional to 193,390.68, 289,966.92 and 67,001.52

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Solution

The fourth proportional to 193,390.68, 289,966.92 and 67,001.52 is: 100,461.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,390.68 : 289,966.92 = 67,001.52 : x
  2. Step 2: Convert to fraction form
    193,390.68/289,966.92 = 67,001.52/x
  3. Step 3: Cross multiply
    193,390.68x = 289,966.92 × 67,001.52
  4. Step 4: Simplify right side
    193,390.68x = 19,428,224,389.72
  5. Step 5: Solve for x
    x = 19,428,224,389.72/193,390.68
  6. Step 6: Final answer
    x = 100,461.02

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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.