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Finding the Fourth Proportional to 127,026.52, 175,299 and 69,662.20

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Solution

The fourth proportional to 127,026.52, 175,299 and 69,662.20 is: 96,135.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,026.52 : 175,299 = 69,662.20 : x
  2. Step 2: Convert to fraction form
    127,026.52/175,299 = 69,662.20/x
  3. Step 3: Cross multiply
    127,026.52x = 175,299 × 69,662.20
  4. Step 4: Simplify right side
    127,026.52x = 12,211,713,997.80
  5. Step 5: Solve for x
    x = 12,211,713,997.80/127,026.52
  6. Step 6: Final answer
    x = 96,135.15

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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.