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Finding the Fourth Proportional to 220,863.60, 331,298.28 and 63,097.20

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Solution

The fourth proportional to 220,863.60, 331,298.28 and 63,097.20 is: 94,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,863.60 : 331,298.28 = 63,097.20 : x
  2. Step 2: Convert to fraction form
    220,863.60/331,298.28 = 63,097.20/x
  3. Step 3: Cross multiply
    220,863.60x = 331,298.28 × 63,097.20
  4. Step 4: Simplify right side
    220,863.60x = 20,903,993,832.82
  5. Step 5: Solve for x
    x = 20,903,993,832.82/220,863.60
  6. Step 6: Final answer
    x = 94,646.62

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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.