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Finding the Fourth Proportional to 226,543.96, 312,512.88 and 135,856.36

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Solution

The fourth proportional to 226,543.96, 312,512.88 and 135,856.36 is: 187,411.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,543.96 : 312,512.88 = 135,856.36 : x
  2. Step 2: Convert to fraction form
    226,543.96/312,512.88 = 135,856.36/x
  3. Step 3: Cross multiply
    226,543.96x = 312,512.88 × 135,856.36
  4. Step 4: Simplify right side
    226,543.96x = 42,456,862,329.92
  5. Step 5: Solve for x
    x = 42,456,862,329.92/226,543.96
  6. Step 6: Final answer
    x = 187,411.14

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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.