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Finding the Fourth Proportional to 479,242.72, 718,864.08 and 146,775.52

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Solution

The fourth proportional to 479,242.72, 718,864.08 and 146,775.52 is: 220,163.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,242.72 : 718,864.08 = 146,775.52 : x
  2. Step 2: Convert to fraction form
    479,242.72/718,864.08 = 146,775.52/x
  3. Step 3: Cross multiply
    479,242.72x = 718,864.08 × 146,775.52
  4. Step 4: Simplify right side
    479,242.72x = 105,511,649,151.32
  5. Step 5: Solve for x
    x = 105,511,649,151.32/479,242.72
  6. Step 6: Final answer
    x = 220,163.28

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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.