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Finding the Fourth Proportional to 111,759.62, 154,225.23 and 61,458.62

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Solution

The fourth proportional to 111,759.62, 154,225.23 and 61,458.62 is: 84,811.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,759.62 : 154,225.23 = 61,458.62 : x
  2. Step 2: Convert to fraction form
    111,759.62/154,225.23 = 61,458.62/x
  3. Step 3: Cross multiply
    111,759.62x = 154,225.23 × 61,458.62
  4. Step 4: Simplify right side
    111,759.62x = 9,478,469,804.98
  5. Step 5: Solve for x
    x = 9,478,469,804.98/111,759.62
  6. Step 6: Final answer
    x = 84,811.22

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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.