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Finding the Fourth Proportional to 156,415, 215,613.84 and 95,873.44

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Solution

The fourth proportional to 156,415, 215,613.84 and 95,873.44 is: 132,158.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,415 : 215,613.84 = 95,873.44 : x
  2. Step 2: Convert to fraction form
    156,415/215,613.84 = 95,873.44/x
  3. Step 3: Cross multiply
    156,415x = 215,613.84 × 95,873.44
  4. Step 4: Simplify right side
    156,415x = 20,671,640,552.41
  5. Step 5: Solve for x
    x = 20,671,640,552.41/156,415
  6. Step 6: Final answer
    x = 132,158.94

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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.