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Finding the Fourth Proportional to 69,502.95, 104,238.39 and 41,430.90

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Solution

The fourth proportional to 69,502.95, 104,238.39 and 41,430.90 is: 62,136.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,502.95 : 104,238.39 = 41,430.90 : x
  2. Step 2: Convert to fraction form
    69,502.95/104,238.39 = 41,430.90/x
  3. Step 3: Cross multiply
    69,502.95x = 104,238.39 × 41,430.90
  4. Step 4: Simplify right side
    69,502.95x = 4,318,690,312.25
  5. Step 5: Solve for x
    x = 4,318,690,312.25/69,502.95
  6. Step 6: Final answer
    x = 62,136.79

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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.