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Finding the Fourth Proportional to 308,629.65, 426,054.52 and 232,177.86

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Solution

The fourth proportional to 308,629.65, 426,054.52 and 232,177.86 is: 320,514.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,629.65 : 426,054.52 = 232,177.86 : x
  2. Step 2: Convert to fraction form
    308,629.65/426,054.52 = 232,177.86/x
  3. Step 3: Cross multiply
    308,629.65x = 426,054.52 × 232,177.86
  4. Step 4: Simplify right side
    308,629.65x = 98,920,426,987.15
  5. Step 5: Solve for x
    x = 98,920,426,987.15/308,629.65
  6. Step 6: Final answer
    x = 320,514.98

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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.