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Finding the Fourth Proportional to 255,082.20, 382,623.30 and 65,542.20

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Solution

The fourth proportional to 255,082.20, 382,623.30 and 65,542.20 is: 98,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,082.20 : 382,623.30 = 65,542.20 : x
  2. Step 2: Convert to fraction form
    255,082.20/382,623.30 = 65,542.20/x
  3. Step 3: Cross multiply
    255,082.20x = 382,623.30 × 65,542.20
  4. Step 4: Simplify right side
    255,082.20x = 25,077,972,853.26
  5. Step 5: Solve for x
    x = 25,077,972,853.26/255,082.20
  6. Step 6: Final answer
    x = 98,313.30

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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.