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Finding the Fourth Proportional to 106,771.69, 147,340.42 and 63,192.49

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Solution

The fourth proportional to 106,771.69, 147,340.42 and 63,192.49 is: 87,202.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,771.69 : 147,340.42 = 63,192.49 : x
  2. Step 2: Convert to fraction form
    106,771.69/147,340.42 = 63,192.49/x
  3. Step 3: Cross multiply
    106,771.69x = 147,340.42 × 63,192.49
  4. Step 4: Simplify right side
    106,771.69x = 9,310,808,017.45
  5. Step 5: Solve for x
    x = 9,310,808,017.45/106,771.69
  6. Step 6: Final answer
    x = 87,202.97

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1.5x scale

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.