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Finding the Fourth Proportional to 71,040.43, 106,532.74 and 26,642.98

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Solution

The fourth proportional to 71,040.43, 106,532.74 and 26,642.98 is: 39,954.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,040.43 : 106,532.74 = 26,642.98 : x
  2. Step 2: Convert to fraction form
    71,040.43/106,532.74 = 26,642.98/x
  3. Step 3: Cross multiply
    71,040.43x = 106,532.74 × 26,642.98
  4. Step 4: Simplify right side
    71,040.43x = 2,838,349,661.17
  5. Step 5: Solve for x
    x = 2,838,349,661.17/71,040.43
  6. Step 6: Final answer
    x = 39,954.00

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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.