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Finding the Fourth Proportional to 178,970.16, 267,871.10 and 131,572.70

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Solution

The fourth proportional to 178,970.16, 267,871.10 and 131,572.70 is: 196,929.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,970.16 : 267,871.10 = 131,572.70 : x
  2. Step 2: Convert to fraction form
    178,970.16/267,871.10 = 131,572.70/x
  3. Step 3: Cross multiply
    178,970.16x = 267,871.10 × 131,572.70
  4. Step 4: Simplify right side
    178,970.16x = 35,244,525,133.14
  5. Step 5: Solve for x
    x = 35,244,525,133.14/178,970.16
  6. Step 6: Final answer
    x = 196,929.62

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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.