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Finding the Fourth Proportional to 229,519.80, 316,728.90 and 127,551.60

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Solution

The fourth proportional to 229,519.80, 316,728.90 and 127,551.60 is: 176,016.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,519.80 : 316,728.90 = 127,551.60 : x
  2. Step 2: Convert to fraction form
    229,519.80/316,728.90 = 127,551.60/x
  3. Step 3: Cross multiply
    229,519.80x = 316,728.90 × 127,551.60
  4. Step 4: Simplify right side
    229,519.80x = 40,399,277,961.24
  5. Step 5: Solve for x
    x = 40,399,277,961.24/229,519.80
  6. Step 6: Final answer
    x = 176,016.53

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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.