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Finding the Fourth Proportional to 496,295.80, 744,443.70 and 141,321.40

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Solution

The fourth proportional to 496,295.80, 744,443.70 and 141,321.40 is: 211,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,295.80 : 744,443.70 = 141,321.40 : x
  2. Step 2: Convert to fraction form
    496,295.80/744,443.70 = 141,321.40/x
  3. Step 3: Cross multiply
    496,295.80x = 744,443.70 × 141,321.40
  4. Step 4: Simplify right side
    496,295.80x = 105,205,825,905.18
  5. Step 5: Solve for x
    x = 105,205,825,905.18/496,295.80
  6. Step 6: Final answer
    x = 211,982.10

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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.