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Finding the Fourth Proportional to 252,252.60, 348,099.76 and 139,074.52

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Solution

The fourth proportional to 252,252.60, 348,099.76 and 139,074.52 is: 191,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,252.60 : 348,099.76 = 139,074.52 : x
  2. Step 2: Convert to fraction form
    252,252.60/348,099.76 = 139,074.52/x
  3. Step 3: Cross multiply
    252,252.60x = 348,099.76 × 139,074.52
  4. Step 4: Simplify right side
    252,252.60x = 48,411,807,034.12
  5. Step 5: Solve for x
    x = 48,411,807,034.12/252,252.60
  6. Step 6: Final answer
    x = 191,917.97

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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.