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Finding the Fourth Proportional to 144,968.38, 217,365.19 and 64,991.88

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Solution

The fourth proportional to 144,968.38, 217,365.19 and 64,991.88 is: 97,448.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,968.38 : 217,365.19 = 64,991.88 : x
  2. Step 2: Convert to fraction form
    144,968.38/217,365.19 = 64,991.88/x
  3. Step 3: Cross multiply
    144,968.38x = 217,365.19 × 64,991.88
  4. Step 4: Simplify right side
    144,968.38x = 14,126,972,344.66
  5. Step 5: Solve for x
    x = 14,126,972,344.66/144,968.38
  6. Step 6: Final answer
    x = 97,448.65

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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.