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Finding the Fourth Proportional to 40,541.70, 60,718.50 and 39,140.04

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Solution

The fourth proportional to 40,541.70, 60,718.50 and 39,140.04 is: 58,619.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,541.70 : 60,718.50 = 39,140.04 : x
  2. Step 2: Convert to fraction form
    40,541.70/60,718.50 = 39,140.04/x
  3. Step 3: Cross multiply
    40,541.70x = 60,718.50 × 39,140.04
  4. Step 4: Simplify right side
    40,541.70x = 2,376,524,518.74
  5. Step 5: Solve for x
    x = 2,376,524,518.74/40,541.70
  6. Step 6: Final answer
    x = 58,619.26

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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.