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Finding the Fourth Proportional to 231,999.97, 348,051.74 and 74,237.89

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Solution

The fourth proportional to 231,999.97, 348,051.74 and 74,237.89 is: 111,373.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,999.97 : 348,051.74 = 74,237.89 : x
  2. Step 2: Convert to fraction form
    231,999.97/348,051.74 = 74,237.89/x
  3. Step 3: Cross multiply
    231,999.97x = 348,051.74 × 74,237.89
  4. Step 4: Simplify right side
    231,999.97x = 25,838,626,788.43
  5. Step 5: Solve for x
    x = 25,838,626,788.43/231,999.97
  6. Step 6: Final answer
    x = 111,373.41

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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.