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Finding the Fourth Proportional to 167,976.50, 251,964.75 and 69,480.50

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Solution

The fourth proportional to 167,976.50, 251,964.75 and 69,480.50 is: 104,220.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,976.50 : 251,964.75 = 69,480.50 : x
  2. Step 2: Convert to fraction form
    167,976.50/251,964.75 = 69,480.50/x
  3. Step 3: Cross multiply
    167,976.50x = 251,964.75 × 69,480.50
  4. Step 4: Simplify right side
    167,976.50x = 17,506,636,812.38
  5. Step 5: Solve for x
    x = 17,506,636,812.38/167,976.50
  6. Step 6: Final answer
    x = 104,220.75

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1.5x scale

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.