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Finding the Fourth Proportional to 298,459.26, 447,688.98 and 88,080.84

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Solution

The fourth proportional to 298,459.26, 447,688.98 and 88,080.84 is: 132,121.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,459.26 : 447,688.98 = 88,080.84 : x
  2. Step 2: Convert to fraction form
    298,459.26/447,688.98 = 88,080.84/x
  3. Step 3: Cross multiply
    298,459.26x = 447,688.98 × 88,080.84
  4. Step 4: Simplify right side
    298,459.26x = 39,432,821,417.14
  5. Step 5: Solve for x
    x = 39,432,821,417.14/298,459.26
  6. Step 6: Final answer
    x = 132,121.29

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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.