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Finding the Fourth Proportional to 215,318.68, 322,650.52 and 102,844.02

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Solution

The fourth proportional to 215,318.68, 322,650.52 and 102,844.02 is: 154,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,318.68 : 322,650.52 = 102,844.02 : x
  2. Step 2: Convert to fraction form
    215,318.68/322,650.52 = 102,844.02/x
  3. Step 3: Cross multiply
    215,318.68x = 322,650.52 × 102,844.02
  4. Step 4: Simplify right side
    215,318.68x = 33,182,676,531.89
  5. Step 5: Solve for x
    x = 33,182,676,531.89/215,318.68
  6. Step 6: Final answer
    x = 154,109.60

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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.