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Finding the Fourth Proportional to 252,299.92, 348,166.44 and 139,122.64

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Solution

The fourth proportional to 252,299.92, 348,166.44 and 139,122.64 is: 191,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,299.92 : 348,166.44 = 139,122.64 : x
  2. Step 2: Convert to fraction form
    252,299.92/348,166.44 = 139,122.64/x
  3. Step 3: Cross multiply
    252,299.92x = 348,166.44 × 139,122.64
  4. Step 4: Simplify right side
    252,299.92x = 48,437,834,292.20
  5. Step 5: Solve for x
    x = 48,437,834,292.20/252,299.92
  6. Step 6: Final answer
    x = 191,985.14

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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.