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Finding the Fourth Proportional to 252,655.52, 348,658.97 and 137,929.71

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Solution

The fourth proportional to 252,655.52, 348,658.97 and 137,929.71 is: 190,339.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,655.52 : 348,658.97 = 137,929.71 : x
  2. Step 2: Convert to fraction form
    252,655.52/348,658.97 = 137,929.71/x
  3. Step 3: Cross multiply
    252,655.52x = 348,658.97 × 137,929.71
  4. Step 4: Simplify right side
    252,655.52x = 48,090,430,621.00
  5. Step 5: Solve for x
    x = 48,090,430,621.00/252,655.52
  6. Step 6: Final answer
    x = 190,339.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.