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Finding the Fourth Proportional to 229,650.36, 316,879.20 and 127,672.98

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Solution

The fourth proportional to 229,650.36, 316,879.20 and 127,672.98 is: 176,167.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,650.36 : 316,879.20 = 127,672.98 : x
  2. Step 2: Convert to fraction form
    229,650.36/316,879.20 = 127,672.98/x
  3. Step 3: Cross multiply
    229,650.36x = 316,879.20 × 127,672.98
  4. Step 4: Simplify right side
    229,650.36x = 40,456,911,764.02
  5. Step 5: Solve for x
    x = 40,456,911,764.02/229,650.36
  6. Step 6: Final answer
    x = 176,167.42

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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.