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Finding the Fourth Proportional to 171,207.40, 239,223.80 and 171,207.40

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Solution

The fourth proportional to 171,207.40, 239,223.80 and 171,207.40 is: 239,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,207.40 : 239,223.80 = 171,207.40 : x
  2. Step 2: Convert to fraction form
    171,207.40/239,223.80 = 171,207.40/x
  3. Step 3: Cross multiply
    171,207.40x = 239,223.80 × 171,207.40
  4. Step 4: Simplify right side
    171,207.40x = 40,956,884,816.12
  5. Step 5: Solve for x
    x = 40,956,884,816.12/171,207.40
  6. Step 6: Final answer
    x = 239,223.80

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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.