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Finding the Fourth Proportional to 110,993.52, 153,167.64 and 67,989.36

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Solution

The fourth proportional to 110,993.52, 153,167.64 and 67,989.36 is: 93,823.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,993.52 : 153,167.64 = 67,989.36 : x
  2. Step 2: Convert to fraction form
    110,993.52/153,167.64 = 67,989.36/x
  3. Step 3: Cross multiply
    110,993.52x = 153,167.64 × 67,989.36
  4. Step 4: Simplify right side
    110,993.52x = 10,413,769,816.31
  5. Step 5: Solve for x
    x = 10,413,769,816.31/110,993.52
  6. Step 6: Final answer
    x = 93,823.22

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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.