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Finding the Fourth Proportional to 235,415.29, 324,879.51 and 127,992.55

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Solution

The fourth proportional to 235,415.29, 324,879.51 and 127,992.55 is: 176,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,415.29 : 324,879.51 = 127,992.55 : x
  2. Step 2: Convert to fraction form
    235,415.29/324,879.51 = 127,992.55/x
  3. Step 3: Cross multiply
    235,415.29x = 324,879.51 × 127,992.55
  4. Step 4: Simplify right side
    235,415.29x = 41,582,156,927.65
  5. Step 5: Solve for x
    x = 41,582,156,927.65/235,415.29
  6. Step 6: Final answer
    x = 176,633.20

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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.