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Finding the Fourth Proportional to 111,666.84, 154,101.20 and 60,679.56

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Solution

The fourth proportional to 111,666.84, 154,101.20 and 60,679.56 is: 83,738.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,666.84 : 154,101.20 = 60,679.56 : x
  2. Step 2: Convert to fraction form
    111,666.84/154,101.20 = 60,679.56/x
  3. Step 3: Cross multiply
    111,666.84x = 154,101.20 × 60,679.56
  4. Step 4: Simplify right side
    111,666.84x = 9,350,793,627.28
  5. Step 5: Solve for x
    x = 9,350,793,627.28/111,666.84
  6. Step 6: Final answer
    x = 83,738.32

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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.