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Finding the Fourth Proportional to 298,988.71, 448,406.51 and 88,577.44

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Solution

The fourth proportional to 298,988.71, 448,406.51 and 88,577.44 is: 132,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,988.71 : 448,406.51 = 88,577.44 : x
  2. Step 2: Convert to fraction form
    298,988.71/448,406.51 = 88,577.44/x
  3. Step 3: Cross multiply
    298,988.71x = 448,406.51 × 88,577.44
  4. Step 4: Simplify right side
    298,988.71x = 39,718,699,171.23
  5. Step 5: Solve for x
    x = 39,718,699,171.23/298,988.71
  6. Step 6: Final answer
    x = 132,843.48

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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.