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Finding the Fourth Proportional to 361,803.80, 542,731.62 and 95,561.66

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Solution

The fourth proportional to 361,803.80, 542,731.62 and 95,561.66 is: 143,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,803.80 : 542,731.62 = 95,561.66 : x
  2. Step 2: Convert to fraction form
    361,803.80/542,731.62 = 95,561.66/x
  3. Step 3: Cross multiply
    361,803.80x = 542,731.62 × 95,561.66
  4. Step 4: Simplify right side
    361,803.80x = 51,864,331,828.03
  5. Step 5: Solve for x
    x = 51,864,331,828.03/361,803.80
  6. Step 6: Final answer
    x = 143,349.33

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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.