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Finding the Fourth Proportional to 111,754.23, 154,220.82 and 61,453.23

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Solution

The fourth proportional to 111,754.23, 154,220.82 and 61,453.23 is: 84,805.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,754.23 : 154,220.82 = 61,453.23 : x
  2. Step 2: Convert to fraction form
    111,754.23/154,220.82 = 61,453.23/x
  3. Step 3: Cross multiply
    111,754.23x = 154,220.82 × 61,453.23
  4. Step 4: Simplify right side
    111,754.23x = 9,477,367,522.25
  5. Step 5: Solve for x
    x = 9,477,367,522.25/111,754.23
  6. Step 6: Final answer
    x = 84,805.45

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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.