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Finding the Fourth Proportional to 189,282.17, 261,200.16 and 112,799.52

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Solution

The fourth proportional to 189,282.17, 261,200.16 and 112,799.52 is: 155,657.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,282.17 : 261,200.16 = 112,799.52 : x
  2. Step 2: Convert to fraction form
    189,282.17/261,200.16 = 112,799.52/x
  3. Step 3: Cross multiply
    189,282.17x = 261,200.16 × 112,799.52
  4. Step 4: Simplify right side
    189,282.17x = 29,463,252,671.92
  5. Step 5: Solve for x
    x = 29,463,252,671.92/189,282.17
  6. Step 6: Final answer
    x = 155,657.83

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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.