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Finding the Fourth Proportional to 298,878.66, 448,404.66 and 88,521.66

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Solution

The fourth proportional to 298,878.66, 448,404.66 and 88,521.66 is: 132,808.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,878.66 : 448,404.66 = 88,521.66 : x
  2. Step 2: Convert to fraction form
    298,878.66/448,404.66 = 88,521.66/x
  3. Step 3: Cross multiply
    298,878.66x = 448,404.66 × 88,521.66
  4. Step 4: Simplify right side
    298,878.66x = 39,693,524,854.94
  5. Step 5: Solve for x
    x = 39,693,524,854.94/298,878.66
  6. Step 6: Final answer
    x = 132,808.16

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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.