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Finding the Fourth Proportional to 111,369.84, 153,622.34 and 66,017.46

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Solution

The fourth proportional to 111,369.84, 153,622.34 and 66,017.46 is: 91,063.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,369.84 : 153,622.34 = 66,017.46 : x
  2. Step 2: Convert to fraction form
    111,369.84/153,622.34 = 66,017.46/x
  3. Step 3: Cross multiply
    111,369.84x = 153,622.34 × 66,017.46
  4. Step 4: Simplify right side
    111,369.84x = 10,141,757,179.62
  5. Step 5: Solve for x
    x = 10,141,757,179.62/111,369.84
  6. Step 6: Final answer
    x = 91,063.77

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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.