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Finding the Fourth Proportional to 123,502.20, 185,426.10 and 76,846.20

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Solution

The fourth proportional to 123,502.20, 185,426.10 and 76,846.20 is: 115,376.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,502.20 : 185,426.10 = 76,846.20 : x
  2. Step 2: Convert to fraction form
    123,502.20/185,426.10 = 76,846.20/x
  3. Step 3: Cross multiply
    123,502.20x = 185,426.10 × 76,846.20
  4. Step 4: Simplify right side
    123,502.20x = 14,249,291,165.82
  5. Step 5: Solve for x
    x = 14,249,291,165.82/123,502.20
  6. Step 6: Final answer
    x = 115,376.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.