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Finding the Fourth Proportional to 223,015.43, 307,621.31 and 132,307.17

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Solution

The fourth proportional to 223,015.43, 307,621.31 and 132,307.17 is: 182,500.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,015.43 : 307,621.31 = 132,307.17 : x
  2. Step 2: Convert to fraction form
    223,015.43/307,621.31 = 132,307.17/x
  3. Step 3: Cross multiply
    223,015.43x = 307,621.31 × 132,307.17
  4. Step 4: Simplify right side
    223,015.43x = 40,700,505,059.10
  5. Step 5: Solve for x
    x = 40,700,505,059.10/223,015.43
  6. Step 6: Final answer
    x = 182,500.85

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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.