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Finding the Fourth Proportional to 170,768.67, 256,165.31 and 65,587.63

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Solution

The fourth proportional to 170,768.67, 256,165.31 and 65,587.63 is: 98,386.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,768.67 : 256,165.31 = 65,587.63 : x
  2. Step 2: Convert to fraction form
    170,768.67/256,165.31 = 65,587.63/x
  3. Step 3: Cross multiply
    170,768.67x = 256,165.31 × 65,587.63
  4. Step 4: Simplify right side
    170,768.67x = 16,801,275,571.12
  5. Step 5: Solve for x
    x = 16,801,275,571.12/170,768.67
  6. Step 6: Final answer
    x = 98,386.17

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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.