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Finding the Fourth Proportional to 342,780.00, 514,217.87 and 143,054.66

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Solution

The fourth proportional to 342,780.00, 514,217.87 and 143,054.66 is: 214,601.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,780.00 : 514,217.87 = 143,054.66 : x
  2. Step 2: Convert to fraction form
    342,780.00/514,217.87 = 143,054.66/x
  3. Step 3: Cross multiply
    342,780.00x = 514,217.87 × 143,054.66
  4. Step 4: Simplify right side
    342,780.00x = 73,561,260,773.03
  5. Step 5: Solve for x
    x = 73,561,260,773.03/342,780.00
  6. Step 6: Final answer
    x = 214,601.96

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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.