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Finding the Fourth Proportional to 60,510.40, 90,722.40 and 34,223.20

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Solution

The fourth proportional to 60,510.40, 90,722.40 and 34,223.20 is: 51,310.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,510.40 : 90,722.40 = 34,223.20 : x
  2. Step 2: Convert to fraction form
    60,510.40/90,722.40 = 34,223.20/x
  3. Step 3: Cross multiply
    60,510.40x = 90,722.40 × 34,223.20
  4. Step 4: Simplify right side
    60,510.40x = 3,104,810,839.68
  5. Step 5: Solve for x
    x = 3,104,810,839.68/60,510.40
  6. Step 6: Final answer
    x = 51,310.37

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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.