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Finding the Fourth Proportional to 252,497.76, 348,446.16 and 139,320.60

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Solution

The fourth proportional to 252,497.76, 348,446.16 and 139,320.60 is: 192,262.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,497.76 : 348,446.16 = 139,320.60 : x
  2. Step 2: Convert to fraction form
    252,497.76/348,446.16 = 139,320.60/x
  3. Step 3: Cross multiply
    252,497.76x = 348,446.16 × 139,320.60
  4. Step 4: Simplify right side
    252,497.76x = 48,545,728,078.90
  5. Step 5: Solve for x
    x = 48,545,728,078.90/252,497.76
  6. Step 6: Final answer
    x = 192,262.01

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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.