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Finding the Fourth Proportional to 171,572.40, 239,734.80 and 171,572.40

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Solution

The fourth proportional to 171,572.40, 239,734.80 and 171,572.40 is: 239,734.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,572.40 : 239,734.80 = 171,572.40 : x
  2. Step 2: Convert to fraction form
    171,572.40/239,734.80 = 171,572.40/x
  3. Step 3: Cross multiply
    171,572.40x = 239,734.80 × 171,572.40
  4. Step 4: Simplify right side
    171,572.40x = 41,131,874,999.52
  5. Step 5: Solve for x
    x = 41,131,874,999.52/171,572.40
  6. Step 6: Final answer
    x = 239,734.80

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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.