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Finding the Fourth Proportional to 91,302.69, 136,954.04 and 59,739.27

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Solution

The fourth proportional to 91,302.69, 136,954.04 and 59,739.27 is: 89,608.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,302.69 : 136,954.04 = 59,739.27 : x
  2. Step 2: Convert to fraction form
    91,302.69/136,954.04 = 59,739.27/x
  3. Step 3: Cross multiply
    91,302.69x = 136,954.04 × 59,739.27
  4. Step 4: Simplify right side
    91,302.69x = 8,181,534,667.28
  5. Step 5: Solve for x
    x = 8,181,534,667.28/91,302.69
  6. Step 6: Final answer
    x = 89,608.91

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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.