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Finding the Fourth Proportional to 84,506.95, 116,619.40 and 50,513.79

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Solution

The fourth proportional to 84,506.95, 116,619.40 and 50,513.79 is: 69,708.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,506.95 : 116,619.40 = 50,513.79 : x
  2. Step 2: Convert to fraction form
    84,506.95/116,619.40 = 50,513.79/x
  3. Step 3: Cross multiply
    84,506.95x = 116,619.40 × 50,513.79
  4. Step 4: Simplify right side
    84,506.95x = 5,890,887,881.53
  5. Step 5: Solve for x
    x = 5,890,887,881.53/84,506.95
  6. Step 6: Final answer
    x = 69,708.92

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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.