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Finding the Fourth Proportional to 137,472.80, 192,047.20 and 137,472.80

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Solution

The fourth proportional to 137,472.80, 192,047.20 and 137,472.80 is: 192,047.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,472.80 : 192,047.20 = 137,472.80 : x
  2. Step 2: Convert to fraction form
    137,472.80/192,047.20 = 137,472.80/x
  3. Step 3: Cross multiply
    137,472.80x = 192,047.20 × 137,472.80
  4. Step 4: Simplify right side
    137,472.80x = 26,401,266,316.16
  5. Step 5: Solve for x
    x = 26,401,266,316.16/137,472.80
  6. Step 6: Final answer
    x = 192,047.20

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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.