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Finding the Fourth Proportional to 91,952.95, 137,711.44 and 58,571.81

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Solution

The fourth proportional to 91,952.95, 137,711.44 and 58,571.81 is: 87,718.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,952.95 : 137,711.44 = 58,571.81 : x
  2. Step 2: Convert to fraction form
    91,952.95/137,711.44 = 58,571.81/x
  3. Step 3: Cross multiply
    91,952.95x = 137,711.44 × 58,571.81
  4. Step 4: Simplify right side
    91,952.95x = 8,066,008,199.58
  5. Step 5: Solve for x
    x = 8,066,008,199.58/91,952.95
  6. Step 6: Final answer
    x = 87,718.87

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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.