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Finding the Fourth Proportional to 266,751.52, 368,103.45 and 145,869.31

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Solution

The fourth proportional to 266,751.52, 368,103.45 and 145,869.31 is: 201,292.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,751.52 : 368,103.45 = 145,869.31 : x
  2. Step 2: Convert to fraction form
    266,751.52/368,103.45 = 145,869.31/x
  3. Step 3: Cross multiply
    266,751.52x = 368,103.45 × 145,869.31
  4. Step 4: Simplify right side
    266,751.52x = 53,694,996,260.12
  5. Step 5: Solve for x
    x = 53,694,996,260.12/266,751.52
  6. Step 6: Final answer
    x = 201,292.18

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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.