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Finding the Fourth Proportional to 116,449.91, 160,675.21 and 74,070.71

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Solution

The fourth proportional to 116,449.91, 160,675.21 and 74,070.71 is: 102,201.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,449.91 : 160,675.21 = 74,070.71 : x
  2. Step 2: Convert to fraction form
    116,449.91/160,675.21 = 74,070.71/x
  3. Step 3: Cross multiply
    116,449.91x = 160,675.21 × 74,070.71
  4. Step 4: Simplify right side
    116,449.91x = 11,901,326,884.10
  5. Step 5: Solve for x
    x = 11,901,326,884.10/116,449.91
  6. Step 6: Final answer
    x = 102,201.25

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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.