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Finding the Fourth Proportional to 298,952.92, 448,331.88 and 99,219.70

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Solution

The fourth proportional to 298,952.92, 448,331.88 and 99,219.70 is: 148,797.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,952.92 : 448,331.88 = 99,219.70 : x
  2. Step 2: Convert to fraction form
    298,952.92/448,331.88 = 99,219.70/x
  3. Step 3: Cross multiply
    298,952.92x = 448,331.88 × 99,219.70
  4. Step 4: Simplify right side
    298,952.92x = 44,483,354,634.04
  5. Step 5: Solve for x
    x = 44,483,354,634.04/298,952.92
  6. Step 6: Final answer
    x = 148,797.19

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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.