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Finding the Fourth Proportional to 304,337.20, 456,505.80 and 104,639.80

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Solution

The fourth proportional to 304,337.20, 456,505.80 and 104,639.80 is: 156,959.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,337.20 : 456,505.80 = 104,639.80 : x
  2. Step 2: Convert to fraction form
    304,337.20/456,505.80 = 104,639.80/x
  3. Step 3: Cross multiply
    304,337.20x = 456,505.80 × 104,639.80
  4. Step 4: Simplify right side
    304,337.20x = 47,768,675,610.84
  5. Step 5: Solve for x
    x = 47,768,675,610.84/304,337.20
  6. Step 6: Final answer
    x = 156,959.70

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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.