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Finding the Fourth Proportional to 137,592.80, 192,215.20 and 137,592.80

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Solution

The fourth proportional to 137,592.80, 192,215.20 and 137,592.80 is: 192,215.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,592.80 : 192,215.20 = 137,592.80 : x
  2. Step 2: Convert to fraction form
    137,592.80/192,215.20 = 137,592.80/x
  3. Step 3: Cross multiply
    137,592.80x = 192,215.20 × 137,592.80
  4. Step 4: Simplify right side
    137,592.80x = 26,447,427,570.56
  5. Step 5: Solve for x
    x = 26,447,427,570.56/137,592.80
  6. Step 6: Final answer
    x = 192,215.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.