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Finding the Fourth Proportional to 111,763.12, 154,230.03 and 61,462.12

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Solution

The fourth proportional to 111,763.12, 154,230.03 and 61,462.12 is: 84,816.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,763.12 : 154,230.03 = 61,462.12 : x
  2. Step 2: Convert to fraction form
    111,763.12/154,230.03 = 61,462.12/x
  3. Step 3: Cross multiply
    111,763.12x = 154,230.03 × 61,462.12
  4. Step 4: Simplify right side
    111,763.12x = 9,479,304,611.46
  5. Step 5: Solve for x
    x = 9,479,304,611.46/111,763.12
  6. Step 6: Final answer
    x = 84,816.03

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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.