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Finding the Fourth Proportional to 298,815.75, 448,311.41 and 88,459.16

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Solution

The fourth proportional to 298,815.75, 448,311.41 and 88,459.16 is: 132,714.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,815.75 : 448,311.41 = 88,459.16 : x
  2. Step 2: Convert to fraction form
    298,815.75/448,311.41 = 88,459.16/x
  3. Step 3: Cross multiply
    298,815.75x = 448,311.41 × 88,459.16
  4. Step 4: Simplify right side
    298,815.75x = 39,657,248,394.88
  5. Step 5: Solve for x
    x = 39,657,248,394.88/298,815.75
  6. Step 6: Final answer
    x = 132,714.72

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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.