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Finding the Fourth Proportional to 225,340.64, 338,127.51 and 99,069.56

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Solution

The fourth proportional to 225,340.64, 338,127.51 and 99,069.56 is: 148,655.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,340.64 : 338,127.51 = 99,069.56 : x
  2. Step 2: Convert to fraction form
    225,340.64/338,127.51 = 99,069.56/x
  3. Step 3: Cross multiply
    225,340.64x = 338,127.51 × 99,069.56
  4. Step 4: Simplify right side
    225,340.64x = 33,498,143,639.60
  5. Step 5: Solve for x
    x = 33,498,143,639.60/225,340.64
  6. Step 6: Final answer
    x = 148,655.58

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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.