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Finding the Fourth Proportional to 231,663.60, 348,013.80 and 222,217.20

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Solution

The fourth proportional to 231,663.60, 348,013.80 and 222,217.20 is: 333,823.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,663.60 : 348,013.80 = 222,217.20 : x
  2. Step 2: Convert to fraction form
    231,663.60/348,013.80 = 222,217.20/x
  3. Step 3: Cross multiply
    231,663.60x = 348,013.80 × 222,217.20
  4. Step 4: Simplify right side
    231,663.60x = 77,334,652,197.36
  5. Step 5: Solve for x
    x = 77,334,652,197.36/231,663.60
  6. Step 6: Final answer
    x = 333,823.06

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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.