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Finding the Fourth Proportional to 111,203.62, 166,645.69 and 63,210.36

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Solution

The fourth proportional to 111,203.62, 166,645.69 and 63,210.36 is: 94,724.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,203.62 : 166,645.69 = 63,210.36 : x
  2. Step 2: Convert to fraction form
    111,203.62/166,645.69 = 63,210.36/x
  3. Step 3: Cross multiply
    111,203.62x = 166,645.69 × 63,210.36
  4. Step 4: Simplify right side
    111,203.62x = 10,533,734,057.35
  5. Step 5: Solve for x
    x = 10,533,734,057.35/111,203.62
  6. Step 6: Final answer
    x = 94,724.74

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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.