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Finding the Fourth Proportional to 127,398.89, 175,809.44 and 69,255.26

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Solution

The fourth proportional to 127,398.89, 175,809.44 and 69,255.26 is: 95,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,398.89 : 175,809.44 = 69,255.26 : x
  2. Step 2: Convert to fraction form
    127,398.89/175,809.44 = 69,255.26/x
  3. Step 3: Cross multiply
    127,398.89x = 175,809.44 × 69,255.26
  4. Step 4: Simplify right side
    127,398.89x = 12,175,727,771.75
  5. Step 5: Solve for x
    x = 12,175,727,771.75/127,398.89
  6. Step 6: Final answer
    x = 95,571.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.