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Finding the Fourth Proportional to 170,040.70, 255,061.05 and 143,796.70

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Solution

The fourth proportional to 170,040.70, 255,061.05 and 143,796.70 is: 215,695.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,040.70 : 255,061.05 = 143,796.70 : x
  2. Step 2: Convert to fraction form
    170,040.70/255,061.05 = 143,796.70/x
  3. Step 3: Cross multiply
    170,040.70x = 255,061.05 × 143,796.70
  4. Step 4: Simplify right side
    170,040.70x = 36,676,937,288.54
  5. Step 5: Solve for x
    x = 36,676,937,288.54/170,040.70
  6. Step 6: Final answer
    x = 215,695.05

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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.