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Finding the Fourth Proportional to 147,362.50, 203,360.28 and 80,294.50

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Solution

The fourth proportional to 147,362.50, 203,360.28 and 80,294.50 is: 110,806.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,362.50 : 203,360.28 = 80,294.50 : x
  2. Step 2: Convert to fraction form
    147,362.50/203,360.28 = 80,294.50/x
  3. Step 3: Cross multiply
    147,362.50x = 203,360.28 × 80,294.50
  4. Step 4: Simplify right side
    147,362.50x = 16,328,712,002.46
  5. Step 5: Solve for x
    x = 16,328,712,002.46/147,362.50
  6. Step 6: Final answer
    x = 110,806.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.