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Finding the Fourth Proportional to 134,782.40, 202,222.20 and 129,922.40

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Solution

The fourth proportional to 134,782.40, 202,222.20 and 129,922.40 is: 194,930.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,782.40 : 202,222.20 = 129,922.40 : x
  2. Step 2: Convert to fraction form
    134,782.40/202,222.20 = 129,922.40/x
  3. Step 3: Cross multiply
    134,782.40x = 202,222.20 × 129,922.40
  4. Step 4: Simplify right side
    134,782.40x = 26,273,193,557.28
  5. Step 5: Solve for x
    x = 26,273,193,557.28/134,782.40
  6. Step 6: Final answer
    x = 194,930.45

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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.