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Finding the Fourth Proportional to 266,061,704.80, 399,092,557.20 and 175,287,791.20

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Solution

The fourth proportional to 266,061,704.80, 399,092,557.20 and 175,287,791.20 is: 262,931,686.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,061,704.80 : 399,092,557.20 = 175,287,791.20 : x
  2. Step 2: Convert to fraction form
    266,061,704.80/399,092,557.20 = 175,287,791.20/x
  3. Step 3: Cross multiply
    266,061,704.80x = 399,092,557.20 × 175,287,791.20
  4. Step 4: Simplify right side
    266,061,704.80x = 69,956,052,835,947,648
  5. Step 5: Solve for x
    x = 69,956,052,835,947,648/266,061,704.80
  6. Step 6: Final answer
    x = 262,931,686.80

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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.