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Finding the Fourth Proportional to 84,689.39, 116,869.88 and 46,963.91

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Solution

The fourth proportional to 84,689.39, 116,869.88 and 46,963.91 is: 64,809.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,689.39 : 116,869.88 = 46,963.91 : x
  2. Step 2: Convert to fraction form
    84,689.39/116,869.88 = 46,963.91/x
  3. Step 3: Cross multiply
    84,689.39x = 116,869.88 × 46,963.91
  4. Step 4: Simplify right side
    84,689.39x = 5,488,666,059.09
  5. Step 5: Solve for x
    x = 5,488,666,059.09/84,689.39
  6. Step 6: Final answer
    x = 64,809.37

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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.