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Finding the Fourth Proportional to 252,886.56, 348,991.92 and 139,715.52

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Solution

The fourth proportional to 252,886.56, 348,991.92 and 139,715.52 is: 192,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,886.56 : 348,991.92 = 139,715.52 : x
  2. Step 2: Convert to fraction form
    252,886.56/348,991.92 = 139,715.52/x
  3. Step 3: Cross multiply
    252,886.56x = 348,991.92 × 139,715.52
  4. Step 4: Simplify right side
    252,886.56x = 48,759,587,578.60
  5. Step 5: Solve for x
    x = 48,759,587,578.60/252,886.56
  6. Step 6: Final answer
    x = 192,812.10

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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.