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Finding the Fourth Proportional to 298,340.84, 447,446.28 and 98,613.92

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Solution

The fourth proportional to 298,340.84, 447,446.28 and 98,613.92 is: 147,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,340.84 : 447,446.28 = 98,613.92 : x
  2. Step 2: Convert to fraction form
    298,340.84/447,446.28 = 98,613.92/x
  3. Step 3: Cross multiply
    298,340.84x = 447,446.28 × 98,613.92
  4. Step 4: Simplify right side
    298,340.84x = 44,124,431,660.22
  5. Step 5: Solve for x
    x = 44,124,431,660.22/298,340.84
  6. Step 6: Final answer
    x = 147,899.40

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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.