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Finding the Fourth Proportional to 298,943.90, 448,339.23 and 88,532.63

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Solution

The fourth proportional to 298,943.90, 448,339.23 and 88,532.63 is: 132,776.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,943.90 : 448,339.23 = 88,532.63 : x
  2. Step 2: Convert to fraction form
    298,943.90/448,339.23 = 88,532.63/x
  3. Step 3: Cross multiply
    298,943.90x = 448,339.23 × 88,532.63
  4. Step 4: Simplify right side
    298,943.90x = 39,692,648,922.38
  5. Step 5: Solve for x
    x = 39,692,648,922.38/298,943.90
  6. Step 6: Final answer
    x = 132,776.25

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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.