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Finding the Fourth Proportional to 292,149.96, 437,071.92 and 221,276.76

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Solution

The fourth proportional to 292,149.96, 437,071.92 and 221,276.76 is: 331,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,149.96 : 437,071.92 = 221,276.76 : x
  2. Step 2: Convert to fraction form
    292,149.96/437,071.92 = 221,276.76/x
  3. Step 3: Cross multiply
    292,149.96x = 437,071.92 × 221,276.76
  4. Step 4: Simplify right side
    292,149.96x = 96,713,858,344.58
  5. Step 5: Solve for x
    x = 96,713,858,344.58/292,149.96
  6. Step 6: Final answer
    x = 331,041.83

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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.