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Finding the Fourth Proportional to 542,474.22, 813,618.45 and 143,119.11

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Solution

The fourth proportional to 542,474.22, 813,618.45 and 143,119.11 is: 214,654.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,474.22 : 813,618.45 = 143,119.11 : x
  2. Step 2: Convert to fraction form
    542,474.22/813,618.45 = 143,119.11/x
  3. Step 3: Cross multiply
    542,474.22x = 813,618.45 × 143,119.11
  4. Step 4: Simplify right side
    542,474.22x = 116,444,348,443.58
  5. Step 5: Solve for x
    x = 116,444,348,443.58/542,474.22
  6. Step 6: Final answer
    x = 214,654.16

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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.