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Finding the Fourth Proportional to 94,713.40, 142,223.70 and 68,601.40

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Solution

The fourth proportional to 94,713.40, 142,223.70 and 68,601.40 is: 103,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,713.40 : 142,223.70 = 68,601.40 : x
  2. Step 2: Convert to fraction form
    94,713.40/142,223.70 = 68,601.40/x
  3. Step 3: Cross multiply
    94,713.40x = 142,223.70 × 68,601.40
  4. Step 4: Simplify right side
    94,713.40x = 9,756,744,933.18
  5. Step 5: Solve for x
    x = 9,756,744,933.18/94,713.40
  6. Step 6: Final answer
    x = 103,013.35

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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.