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Finding the Fourth Proportional to 91,276.95, 125,957.70 and 50,982.69

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Solution

The fourth proportional to 91,276.95, 125,957.70 and 50,982.69 is: 70,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,276.95 : 125,957.70 = 50,982.69 : x
  2. Step 2: Convert to fraction form
    91,276.95/125,957.70 = 50,982.69/x
  3. Step 3: Cross multiply
    91,276.95x = 125,957.70 × 50,982.69
  4. Step 4: Simplify right side
    91,276.95x = 6,421,662,372.21
  5. Step 5: Solve for x
    x = 6,421,662,372.21/91,276.95
  6. Step 6: Final answer
    x = 70,353.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.