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Finding the Fourth Proportional to 98,311.50, 147,429.81 and 35,119.80

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Solution

The fourth proportional to 98,311.50, 147,429.81 and 35,119.80 is: 52,666.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,311.50 : 147,429.81 = 35,119.80 : x
  2. Step 2: Convert to fraction form
    98,311.50/147,429.81 = 35,119.80/x
  3. Step 3: Cross multiply
    98,311.50x = 147,429.81 × 35,119.80
  4. Step 4: Simplify right side
    98,311.50x = 5,177,705,441.24
  5. Step 5: Solve for x
    x = 5,177,705,441.24/98,311.50
  6. Step 6: Final answer
    x = 52,666.33

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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.