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Finding the Fourth Proportional to 319,197.89, 440,488.33 and 175,954.86

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Solution

The fourth proportional to 319,197.89, 440,488.33 and 175,954.86 is: 242,815.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,197.89 : 440,488.33 = 175,954.86 : x
  2. Step 2: Convert to fraction form
    319,197.89/440,488.33 = 175,954.86/x
  3. Step 3: Cross multiply
    319,197.89x = 440,488.33 × 175,954.86
  4. Step 4: Simplify right side
    319,197.89x = 77,506,061,996.90
  5. Step 5: Solve for x
    x = 77,506,061,996.90/319,197.89
  6. Step 6: Final answer
    x = 242,815.08

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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.