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Finding the Fourth Proportional to 111,118.92, 153,393.36 and 70,885.44

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Solution

The fourth proportional to 111,118.92, 153,393.36 and 70,885.44 is: 97,853.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,118.92 : 153,393.36 = 70,885.44 : x
  2. Step 2: Convert to fraction form
    111,118.92/153,393.36 = 70,885.44/x
  3. Step 3: Cross multiply
    111,118.92x = 153,393.36 × 70,885.44
  4. Step 4: Simplify right side
    111,118.92x = 10,873,355,816.68
  5. Step 5: Solve for x
    x = 10,873,355,816.68/111,118.92
  6. Step 6: Final answer
    x = 97,853.33

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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.