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Finding the Fourth Proportional to 111,251.80, 153,525.54 and 68,799.16

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Solution

The fourth proportional to 111,251.80, 153,525.54 and 68,799.16 is: 94,941.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,251.80 : 153,525.54 = 68,799.16 : x
  2. Step 2: Convert to fraction form
    111,251.80/153,525.54 = 68,799.16/x
  3. Step 3: Cross multiply
    111,251.80x = 153,525.54 × 68,799.16
  4. Step 4: Simplify right side
    111,251.80x = 10,562,428,190.55
  5. Step 5: Solve for x
    x = 10,562,428,190.55/111,251.80
  6. Step 6: Final answer
    x = 94,941.64

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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.