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Finding the Fourth Proportional to 319,103.48, 440,360.62 and 175,863.62

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Solution

The fourth proportional to 319,103.48, 440,360.62 and 175,863.62 is: 242,690.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,103.48 : 440,360.62 = 175,863.62 : x
  2. Step 2: Convert to fraction form
    319,103.48/440,360.62 = 175,863.62/x
  3. Step 3: Cross multiply
    319,103.48x = 440,360.62 × 175,863.62
  4. Step 4: Simplify right side
    319,103.48x = 77,443,413,399.89
  5. Step 5: Solve for x
    x = 77,443,413,399.89/319,103.48
  6. Step 6: Final answer
    x = 242,690.59

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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.