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Finding the Fourth Proportional to 266,701.97, 368,045.10 and 151,987.43

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Solution

The fourth proportional to 266,701.97, 368,045.10 and 151,987.43 is: 209,740.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,701.97 : 368,045.10 = 151,987.43 : x
  2. Step 2: Convert to fraction form
    266,701.97/368,045.10 = 151,987.43/x
  3. Step 3: Cross multiply
    266,701.97x = 368,045.10 × 151,987.43
  4. Step 4: Simplify right side
    266,701.97x = 55,938,227,032.87
  5. Step 5: Solve for x
    x = 55,938,227,032.87/266,701.97
  6. Step 6: Final answer
    x = 209,740.59

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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.