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Finding the Fourth Proportional to 319,422.83, 440,801.71 and 176,182.53

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Solution

The fourth proportional to 319,422.83, 440,801.71 and 176,182.53 is: 243,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,422.83 : 440,801.71 = 176,182.53 : x
  2. Step 2: Convert to fraction form
    319,422.83/440,801.71 = 176,182.53/x
  3. Step 3: Cross multiply
    319,422.83x = 440,801.71 × 176,182.53
  4. Step 4: Simplify right side
    319,422.83x = 77,661,560,496.13
  5. Step 5: Solve for x
    x = 77,661,560,496.13/319,422.83
  6. Step 6: Final answer
    x = 243,130.90

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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.