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Finding the Fourth Proportional to 252,693.29, 348,717.95 and 137,974.28

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Solution

The fourth proportional to 252,693.29, 348,717.95 and 137,974.28 is: 190,405.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,693.29 : 348,717.95 = 137,974.28 : x
  2. Step 2: Convert to fraction form
    252,693.29/348,717.95 = 137,974.28/x
  3. Step 3: Cross multiply
    252,693.29x = 348,717.95 × 137,974.28
  4. Step 4: Simplify right side
    252,693.29x = 48,114,105,640.86
  5. Step 5: Solve for x
    x = 48,114,105,640.86/252,693.29
  6. Step 6: Final answer
    x = 190,405.16

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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.