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Finding the Fourth Proportional to 347,881.20, 522,016.20 and 148,167.60

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Solution

The fourth proportional to 347,881.20, 522,016.20 and 148,167.60 is: 222,334.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,881.20 : 522,016.20 = 148,167.60 : x
  2. Step 2: Convert to fraction form
    347,881.20/522,016.20 = 148,167.60/x
  3. Step 3: Cross multiply
    347,881.20x = 522,016.20 × 148,167.60
  4. Step 4: Simplify right side
    347,881.20x = 77,345,887,515.12
  5. Step 5: Solve for x
    x = 77,345,887,515.12/347,881.20
  6. Step 6: Final answer
    x = 222,334.20

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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.