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Finding the Fourth Proportional to 131,737.88, 197,612.28 and 38,243.63

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Solution

The fourth proportional to 131,737.88, 197,612.28 and 38,243.63 is: 57,367.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,737.88 : 197,612.28 = 38,243.63 : x
  2. Step 2: Convert to fraction form
    131,737.88/197,612.28 = 38,243.63/x
  3. Step 3: Cross multiply
    131,737.88x = 197,612.28 × 38,243.63
  4. Step 4: Simplify right side
    131,737.88x = 7,557,409,931.72
  5. Step 5: Solve for x
    x = 7,557,409,931.72/131,737.88
  6. Step 6: Final answer
    x = 57,367.02

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1.5x scale

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.