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Finding the Fourth Proportional to 252,695.76, 348,717.49 and 137,974.04

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Solution

The fourth proportional to 252,695.76, 348,717.49 and 137,974.04 is: 190,402.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,695.76 : 348,717.49 = 137,974.04 : x
  2. Step 2: Convert to fraction form
    252,695.76/348,717.49 = 137,974.04/x
  3. Step 3: Cross multiply
    252,695.76x = 348,717.49 × 137,974.04
  4. Step 4: Simplify right side
    252,695.76x = 48,113,960,913.96
  5. Step 5: Solve for x
    x = 48,113,960,913.96/252,695.76
  6. Step 6: Final answer
    x = 190,402.72

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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.