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Finding the Fourth Proportional to 101,763.36, 152,732.88 and 70,620.48

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Solution

The fourth proportional to 101,763.36, 152,732.88 and 70,620.48 is: 105,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,763.36 : 152,732.88 = 70,620.48 : x
  2. Step 2: Convert to fraction form
    101,763.36/152,732.88 = 70,620.48/x
  3. Step 3: Cross multiply
    101,763.36x = 152,732.88 × 70,620.48
  4. Step 4: Simplify right side
    101,763.36x = 10,786,069,297.38
  5. Step 5: Solve for x
    x = 10,786,069,297.38/101,763.36
  6. Step 6: Final answer
    x = 105,991.68

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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.