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Finding the Fourth Proportional to 298,988.15, 448,405.67 and 88,576.88

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Solution

The fourth proportional to 298,988.15, 448,405.67 and 88,576.88 is: 132,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,988.15 : 448,405.67 = 88,576.88 : x
  2. Step 2: Convert to fraction form
    298,988.15/448,405.67 = 88,576.88/x
  3. Step 3: Cross multiply
    298,988.15x = 448,405.67 × 88,576.88
  4. Step 4: Simplify right side
    298,988.15x = 39,718,373,202.32
  5. Step 5: Solve for x
    x = 39,718,373,202.32/298,988.15
  6. Step 6: Final answer
    x = 132,842.64

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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.