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Finding the Fourth Proportional to 171,530.60, 256,950.30 and 97,572.20

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Solution

The fourth proportional to 171,530.60, 256,950.30 and 97,572.20 is: 146,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,530.60 : 256,950.30 = 97,572.20 : x
  2. Step 2: Convert to fraction form
    171,530.60/256,950.30 = 97,572.20/x
  3. Step 3: Cross multiply
    171,530.60x = 256,950.30 × 97,572.20
  4. Step 4: Simplify right side
    171,530.60x = 25,071,206,061.66
  5. Step 5: Solve for x
    x = 25,071,206,061.66/171,530.60
  6. Step 6: Final answer
    x = 146,161.71

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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.