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Finding the Fourth Proportional to 78,767.84, 118,131.60 and 23,350.88

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Solution

The fourth proportional to 78,767.84, 118,131.60 and 23,350.88 is: 35,020.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,767.84 : 118,131.60 = 23,350.88 : x
  2. Step 2: Convert to fraction form
    78,767.84/118,131.60 = 23,350.88/x
  3. Step 3: Cross multiply
    78,767.84x = 118,131.60 × 23,350.88
  4. Step 4: Simplify right side
    78,767.84x = 2,758,476,815.81
  5. Step 5: Solve for x
    x = 2,758,476,815.81/78,767.84
  6. Step 6: Final answer
    x = 35,020.34

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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.