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Finding the Fourth Proportional to 84,603.81, 116,765.52 and 48,786.69

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Solution

The fourth proportional to 84,603.81, 116,765.52 and 48,786.69 is: 67,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,603.81 : 116,765.52 = 48,786.69 : x
  2. Step 2: Convert to fraction form
    84,603.81/116,765.52 = 48,786.69/x
  3. Step 3: Cross multiply
    84,603.81x = 116,765.52 × 48,786.69
  4. Step 4: Simplify right side
    84,603.81x = 5,696,603,226.93
  5. Step 5: Solve for x
    x = 5,696,603,226.93/84,603.81
  6. Step 6: Final answer
    x = 67,332.70

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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.