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Finding the Fourth Proportional to 252,487.17, 348,432.03 and 139,309.92

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Solution

The fourth proportional to 252,487.17, 348,432.03 and 139,309.92 is: 192,247.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,487.17 : 348,432.03 = 139,309.92 : x
  2. Step 2: Convert to fraction form
    252,487.17/348,432.03 = 139,309.92/x
  3. Step 3: Cross multiply
    252,487.17x = 348,432.03 × 139,309.92
  4. Step 4: Simplify right side
    252,487.17x = 48,540,038,224.74
  5. Step 5: Solve for x
    x = 48,540,038,224.74/252,487.17
  6. Step 6: Final answer
    x = 192,247.54

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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.