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Finding the Fourth Proportional to 121,351.98, 182,109.98 and 42,466.89

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Solution

The fourth proportional to 121,351.98, 182,109.98 and 42,466.89 is: 63,729.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,351.98 : 182,109.98 = 42,466.89 : x
  2. Step 2: Convert to fraction form
    121,351.98/182,109.98 = 42,466.89/x
  3. Step 3: Cross multiply
    121,351.98x = 182,109.98 × 42,466.89
  4. Step 4: Simplify right side
    121,351.98x = 7,733,644,276.23
  5. Step 5: Solve for x
    x = 7,733,644,276.23/121,351.98
  6. Step 6: Final answer
    x = 63,729.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.