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Finding the Fourth Proportional to 542,367.48, 813,555.96 and 143,064.96

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Solution

The fourth proportional to 542,367.48, 813,555.96 and 143,064.96 is: 214,598.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,367.48 : 813,555.96 = 143,064.96 : x
  2. Step 2: Convert to fraction form
    542,367.48/813,555.96 = 143,064.96/x
  3. Step 3: Cross multiply
    542,367.48x = 813,555.96 × 143,064.96
  4. Step 4: Simplify right side
    542,367.48x = 116,391,350,875.16
  5. Step 5: Solve for x
    x = 116,391,350,875.16/542,367.48
  6. Step 6: Final answer
    x = 214,598.69

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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.