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Finding the Fourth Proportional to 330,807.42, 496,151.63 and 87,650.13

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Solution

The fourth proportional to 330,807.42, 496,151.63 and 87,650.13 is: 131,459.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,807.42 : 496,151.63 = 87,650.13 : x
  2. Step 2: Convert to fraction form
    330,807.42/496,151.63 = 87,650.13/x
  3. Step 3: Cross multiply
    330,807.42x = 496,151.63 × 87,650.13
  4. Step 4: Simplify right side
    330,807.42x = 43,487,754,430.96
  5. Step 5: Solve for x
    x = 43,487,754,430.96/330,807.42
  6. Step 6: Final answer
    x = 131,459.43

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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.