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Finding the Fourth Proportional to 212,221.44, 318,332.16 and 101,076.48

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Solution

The fourth proportional to 212,221.44, 318,332.16 and 101,076.48 is: 151,614.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,221.44 : 318,332.16 = 101,076.48 : x
  2. Step 2: Convert to fraction form
    212,221.44/318,332.16 = 101,076.48/x
  3. Step 3: Cross multiply
    212,221.44x = 318,332.16 × 101,076.48
  4. Step 4: Simplify right side
    212,221.44x = 32,175,894,203.60
  5. Step 5: Solve for x
    x = 32,175,894,203.60/212,221.44
  6. Step 6: Final answer
    x = 151,614.72

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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.