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Finding the Fourth Proportional to 231,610.86, 319,186.17 and 185,618.25

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Solution

The fourth proportional to 231,610.86, 319,186.17 and 185,618.25 is: 255,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,610.86 : 319,186.17 = 185,618.25 : x
  2. Step 2: Convert to fraction form
    231,610.86/319,186.17 = 185,618.25/x
  3. Step 3: Cross multiply
    231,610.86x = 319,186.17 × 185,618.25
  4. Step 4: Simplify right side
    231,610.86x = 59,246,778,299.60
  5. Step 5: Solve for x
    x = 59,246,778,299.60/231,610.86
  6. Step 6: Final answer
    x = 255,803.11

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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.