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Finding the Fourth Proportional to 119,555.26, 165,065.66 and 74,300.77

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Solution

The fourth proportional to 119,555.26, 165,065.66 and 74,300.77 is: 102,584.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,555.26 : 165,065.66 = 74,300.77 : x
  2. Step 2: Convert to fraction form
    119,555.26/165,065.66 = 74,300.77/x
  3. Step 3: Cross multiply
    119,555.26x = 165,065.66 × 74,300.77
  4. Step 4: Simplify right side
    119,555.26x = 12,264,504,441.73
  5. Step 5: Solve for x
    x = 12,264,504,441.73/119,555.26
  6. Step 6: Final answer
    x = 102,584.40

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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.