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Finding the Fourth Proportional to 318,827.01, 439,978.36 and 175,583.98

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Solution

The fourth proportional to 318,827.01, 439,978.36 and 175,583.98 is: 242,304.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,827.01 : 439,978.36 = 175,583.98 : x
  2. Step 2: Convert to fraction form
    318,827.01/439,978.36 = 175,583.98/x
  3. Step 3: Cross multiply
    318,827.01x = 439,978.36 × 175,583.98
  4. Step 4: Simplify right side
    318,827.01x = 77,253,151,562.67
  5. Step 5: Solve for x
    x = 77,253,151,562.67/318,827.01
  6. Step 6: Final answer
    x = 242,304.29

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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.