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Finding the Fourth Proportional to 116,730.69, 174,815.45 and 66,659.19

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Solution

The fourth proportional to 116,730.69, 174,815.45 and 66,659.19 is: 99,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,730.69 : 174,815.45 = 66,659.19 : x
  2. Step 2: Convert to fraction form
    116,730.69/174,815.45 = 66,659.19/x
  3. Step 3: Cross multiply
    116,730.69x = 174,815.45 × 66,659.19
  4. Step 4: Simplify right side
    116,730.69x = 11,653,056,296.49
  5. Step 5: Solve for x
    x = 11,653,056,296.49/116,730.69
  6. Step 6: Final answer
    x = 99,828.56

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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.