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Finding the Fourth Proportional to 266,035.79, 399,057.33 and 88,543.43

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Solution

The fourth proportional to 266,035.79, 399,057.33 and 88,543.43 is: 132,816.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,035.79 : 399,057.33 = 88,543.43 : x
  2. Step 2: Convert to fraction form
    266,035.79/399,057.33 = 88,543.43/x
  3. Step 3: Cross multiply
    266,035.79x = 399,057.33 × 88,543.43
  4. Step 4: Simplify right side
    266,035.79x = 35,333,904,598.06
  5. Step 5: Solve for x
    x = 35,333,904,598.06/266,035.79
  6. Step 6: Final answer
    x = 132,816.36

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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.