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Finding the Fourth Proportional to 91,156.95, 136,734.81 and 49,056.84

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Solution

The fourth proportional to 91,156.95, 136,734.81 and 49,056.84 is: 73,584.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,156.95 : 136,734.81 = 49,056.84 : x
  2. Step 2: Convert to fraction form
    91,156.95/136,734.81 = 49,056.84/x
  3. Step 3: Cross multiply
    91,156.95x = 136,734.81 × 49,056.84
  4. Step 4: Simplify right side
    91,156.95x = 6,707,777,696.60
  5. Step 5: Solve for x
    x = 6,707,777,696.60/91,156.95
  6. Step 6: Final answer
    x = 73,584.93

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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.