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Finding the Fourth Proportional to 252,792.56, 348,851.40 and 139,616.72

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Solution

The fourth proportional to 252,792.56, 348,851.40 and 139,616.72 is: 192,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,792.56 : 348,851.40 = 139,616.72 : x
  2. Step 2: Convert to fraction form
    252,792.56/348,851.40 = 139,616.72/x
  3. Step 3: Cross multiply
    252,792.56x = 348,851.40 × 139,616.72
  4. Step 4: Simplify right side
    252,792.56x = 48,705,488,235.41
  5. Step 5: Solve for x
    x = 48,705,488,235.41/252,792.56
  6. Step 6: Final answer
    x = 192,669.79

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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.