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Finding the Fourth Proportional to 322,927.20, 484,390.80 and 112,515.93

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Solution

The fourth proportional to 322,927.20, 484,390.80 and 112,515.93 is: 168,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,927.20 : 484,390.80 = 112,515.93 : x
  2. Step 2: Convert to fraction form
    322,927.20/484,390.80 = 112,515.93/x
  3. Step 3: Cross multiply
    322,927.20x = 484,390.80 × 112,515.93
  4. Step 4: Simplify right side
    322,927.20x = 54,501,681,345.44
  5. Step 5: Solve for x
    x = 54,501,681,345.44/322,927.20
  6. Step 6: Final answer
    x = 168,773.90

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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.