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Finding the Fourth Proportional to 116,422.97, 174,488.45 and 49,784.90

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Solution

The fourth proportional to 116,422.97, 174,488.45 and 49,784.90 is: 74,614.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,422.97 : 174,488.45 = 49,784.90 : x
  2. Step 2: Convert to fraction form
    116,422.97/174,488.45 = 49,784.90/x
  3. Step 3: Cross multiply
    116,422.97x = 174,488.45 × 49,784.90
  4. Step 4: Simplify right side
    116,422.97x = 8,686,888,913.04
  5. Step 5: Solve for x
    x = 8,686,888,913.04/116,422.97
  6. Step 6: Final answer
    x = 74,614.91

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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.