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Finding the Fourth Proportional to 162,879.12, 224,772.30 and 91,257.30

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Solution

The fourth proportional to 162,879.12, 224,772.30 and 91,257.30 is: 125,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,879.12 : 224,772.30 = 91,257.30 : x
  2. Step 2: Convert to fraction form
    162,879.12/224,772.30 = 91,257.30/x
  3. Step 3: Cross multiply
    162,879.12x = 224,772.30 × 91,257.30
  4. Step 4: Simplify right side
    162,879.12x = 20,512,113,212.79
  5. Step 5: Solve for x
    x = 20,512,113,212.79/162,879.12
  6. Step 6: Final answer
    x = 125,934.58

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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.