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Finding the Fourth Proportional to 224,449.60, 309,609.84 and 143,848.48

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Solution

The fourth proportional to 224,449.60, 309,609.84 and 143,848.48 is: 198,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,449.60 : 309,609.84 = 143,848.48 : x
  2. Step 2: Convert to fraction form
    224,449.60/309,609.84 = 143,848.48/x
  3. Step 3: Cross multiply
    224,449.60x = 309,609.84 × 143,848.48
  4. Step 4: Simplify right side
    224,449.60x = 44,536,904,877.04
  5. Step 5: Solve for x
    x = 44,536,904,877.04/224,449.60
  6. Step 6: Final answer
    x = 198,427.20

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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.