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Finding the Fourth Proportional to 220,496.80, 304,260.24 and 124,984.48

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Solution

The fourth proportional to 220,496.80, 304,260.24 and 124,984.48 is: 172,464.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,496.80 : 304,260.24 = 124,984.48 : x
  2. Step 2: Convert to fraction form
    220,496.80/304,260.24 = 124,984.48/x
  3. Step 3: Cross multiply
    220,496.80x = 304,260.24 × 124,984.48
  4. Step 4: Simplify right side
    220,496.80x = 38,027,807,881.08
  5. Step 5: Solve for x
    x = 38,027,807,881.08/220,496.80
  6. Step 6: Final answer
    x = 172,464.22

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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.