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Finding the Fourth Proportional to 275,587.47, 380,352.26 and 168,219.74

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Solution

The fourth proportional to 275,587.47, 380,352.26 and 168,219.74 is: 232,168.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,587.47 : 380,352.26 = 168,219.74 : x
  2. Step 2: Convert to fraction form
    275,587.47/380,352.26 = 168,219.74/x
  3. Step 3: Cross multiply
    275,587.47x = 380,352.26 × 168,219.74
  4. Step 4: Simplify right side
    275,587.47x = 63,982,755,542.75
  5. Step 5: Solve for x
    x = 63,982,755,542.75/275,587.47
  6. Step 6: Final answer
    x = 232,168.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.