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Finding the Fourth Proportional to 114,309.62, 170,769.15 and 74,000.21

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Solution

The fourth proportional to 114,309.62, 170,769.15 and 74,000.21 is: 110,550.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,309.62 : 170,769.15 = 74,000.21 : x
  2. Step 2: Convert to fraction form
    114,309.62/170,769.15 = 74,000.21/x
  3. Step 3: Cross multiply
    114,309.62x = 170,769.15 × 74,000.21
  4. Step 4: Simplify right side
    114,309.62x = 12,636,952,107.68
  5. Step 5: Solve for x
    x = 12,636,952,107.68/114,309.62
  6. Step 6: Final answer
    x = 110,550.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.