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Finding the Fourth Proportional to 131,479.80, 197,219.70 and 124,222.20

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Solution

The fourth proportional to 131,479.80, 197,219.70 and 124,222.20 is: 186,333.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,479.80 : 197,219.70 = 124,222.20 : x
  2. Step 2: Convert to fraction form
    131,479.80/197,219.70 = 124,222.20/x
  3. Step 3: Cross multiply
    131,479.80x = 197,219.70 × 124,222.20
  4. Step 4: Simplify right side
    131,479.80x = 24,499,065,017.34
  5. Step 5: Solve for x
    x = 24,499,065,017.34/131,479.80
  6. Step 6: Final answer
    x = 186,333.30

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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.