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Finding the Fourth Proportional to 74,353.25, 111,529.95 and 61,177.93

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Solution

The fourth proportional to 74,353.25, 111,529.95 and 61,177.93 is: 91,766.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,353.25 : 111,529.95 = 61,177.93 : x
  2. Step 2: Convert to fraction form
    74,353.25/111,529.95 = 61,177.93/x
  3. Step 3: Cross multiply
    74,353.25x = 111,529.95 × 61,177.93
  4. Step 4: Simplify right side
    74,353.25x = 6,823,170,965.76
  5. Step 5: Solve for x
    x = 6,823,170,965.76/74,353.25
  6. Step 6: Final answer
    x = 91,766.95

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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.