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Finding the Fourth Proportional to 181,247.40, 271,603.80 and 131,432.40

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Solution

The fourth proportional to 181,247.40, 271,603.80 and 131,432.40 is: 196,954.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,247.40 : 271,603.80 = 131,432.40 : x
  2. Step 2: Convert to fraction form
    181,247.40/271,603.80 = 131,432.40/x
  3. Step 3: Cross multiply
    181,247.40x = 271,603.80 × 131,432.40
  4. Step 4: Simplify right side
    181,247.40x = 35,697,539,283.12
  5. Step 5: Solve for x
    x = 35,697,539,283.12/181,247.40
  6. Step 6: Final answer
    x = 196,954.77

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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.