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Finding the Fourth Proportional to 243,281.80, 364,776.90 and 125,183.80

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Solution

The fourth proportional to 243,281.80, 364,776.90 and 125,183.80 is: 187,700.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,281.80 : 364,776.90 = 125,183.80 : x
  2. Step 2: Convert to fraction form
    243,281.80/364,776.90 = 125,183.80/x
  3. Step 3: Cross multiply
    243,281.80x = 364,776.90 × 125,183.80
  4. Step 4: Simplify right side
    243,281.80x = 45,664,158,494.22
  5. Step 5: Solve for x
    x = 45,664,158,494.22/243,281.80
  6. Step 6: Final answer
    x = 187,700.68

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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.