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Finding the Fourth Proportional to 111,759.98, 154,224.75 and 61,458.62

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Solution

The fourth proportional to 111,759.98, 154,224.75 and 61,458.62 is: 84,810.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,759.98 : 154,224.75 = 61,458.62 : x
  2. Step 2: Convert to fraction form
    111,759.98/154,224.75 = 61,458.62/x
  3. Step 3: Cross multiply
    111,759.98x = 154,224.75 × 61,458.62
  4. Step 4: Simplify right side
    111,759.98x = 9,478,440,304.85
  5. Step 5: Solve for x
    x = 9,478,440,304.85/111,759.98
  6. Step 6: Final answer
    x = 84,810.68

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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.