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Finding the Fourth Proportional to 247,390.88, 371,085.38 and 89,582.42

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Solution

The fourth proportional to 247,390.88, 371,085.38 and 89,582.42 is: 134,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,390.88 : 371,085.38 = 89,582.42 : x
  2. Step 2: Convert to fraction form
    247,390.88/371,085.38 = 89,582.42/x
  3. Step 3: Cross multiply
    247,390.88x = 371,085.38 × 89,582.42
  4. Step 4: Simplify right side
    247,390.88x = 33,242,726,367.02
  5. Step 5: Solve for x
    x = 33,242,726,367.02/247,390.88
  6. Step 6: Final answer
    x = 134,373.29

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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.