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Finding the Fourth Proportional to 131,463.40, 197,195.10 and 61,479.40

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Solution

The fourth proportional to 131,463.40, 197,195.10 and 61,479.40 is: 92,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,463.40 : 197,195.10 = 61,479.40 : x
  2. Step 2: Convert to fraction form
    131,463.40/197,195.10 = 61,479.40/x
  3. Step 3: Cross multiply
    131,463.40x = 197,195.10 × 61,479.40
  4. Step 4: Simplify right side
    131,463.40x = 12,123,436,430.94
  5. Step 5: Solve for x
    x = 12,123,436,430.94/131,463.40
  6. Step 6: Final answer
    x = 92,219.10

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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.