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Finding the Fourth Proportional to 91,037.68, 125,632.52 and 50,754

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Solution

The fourth proportional to 91,037.68, 125,632.52 and 50,754 is: 70,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,037.68 : 125,632.52 = 50,754 : x
  2. Step 2: Convert to fraction form
    91,037.68/125,632.52 = 50,754/x
  3. Step 3: Cross multiply
    91,037.68x = 125,632.52 × 50,754
  4. Step 4: Simplify right side
    91,037.68x = 6,376,352,920.08
  5. Step 5: Solve for x
    x = 6,376,352,920.08/91,037.68
  6. Step 6: Final answer
    x = 70,040.81

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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.