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Finding the Fourth Proportional to 225,097.53, 337,646.87 and 91,977.79

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Solution

The fourth proportional to 225,097.53, 337,646.87 and 91,977.79 is: 137,966.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,097.53 : 337,646.87 = 91,977.79 : x
  2. Step 2: Convert to fraction form
    225,097.53/337,646.87 = 91,977.79/x
  3. Step 3: Cross multiply
    225,097.53x = 337,646.87 × 91,977.79
  4. Step 4: Simplify right side
    225,097.53x = 31,056,011,599.01
  5. Step 5: Solve for x
    x = 31,056,011,599.01/225,097.53
  6. Step 6: Final answer
    x = 137,966.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.