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Finding the Fourth Proportional to 325,126.56, 487,689.84 and 114,630.24

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Solution

The fourth proportional to 325,126.56, 487,689.84 and 114,630.24 is: 171,945.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,126.56 : 487,689.84 = 114,630.24 : x
  2. Step 2: Convert to fraction form
    325,126.56/487,689.84 = 114,630.24/x
  3. Step 3: Cross multiply
    325,126.56x = 487,689.84 × 114,630.24
  4. Step 4: Simplify right side
    325,126.56x = 55,904,003,404.76
  5. Step 5: Solve for x
    x = 55,904,003,404.76/325,126.56
  6. Step 6: Final answer
    x = 171,945.36

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Similar ratio
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1.5x scale

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.