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Finding the Fourth Proportional to 272,143.32, 408,400.74 and 94,648.56

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Solution

The fourth proportional to 272,143.32, 408,400.74 and 94,648.56 is: 142,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,143.32 : 408,400.74 = 94,648.56 : x
  2. Step 2: Convert to fraction form
    272,143.32/408,400.74 = 94,648.56/x
  3. Step 3: Cross multiply
    272,143.32x = 408,400.74 × 94,648.56
  4. Step 4: Simplify right side
    272,143.32x = 38,654,541,943.93
  5. Step 5: Solve for x
    x = 38,654,541,943.93/272,143.32
  6. Step 6: Final answer
    x = 142,037.45

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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.