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Finding the Fourth Proportional to 266,854.39, 368,392.31 and 153,655.27

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Solution

The fourth proportional to 266,854.39, 368,392.31 and 153,655.27 is: 212,121.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,854.39 : 368,392.31 = 153,655.27 : x
  2. Step 2: Convert to fraction form
    266,854.39/368,392.31 = 153,655.27/x
  3. Step 3: Cross multiply
    266,854.39x = 368,392.31 × 153,655.27
  4. Step 4: Simplify right side
    266,854.39x = 56,605,419,858.97
  5. Step 5: Solve for x
    x = 56,605,419,858.97/266,854.39
  6. Step 6: Final answer
    x = 212,121.00

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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.