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Finding the Fourth Proportional to 111,675.60, 154,110.60 and 61,373.52

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Solution

The fourth proportional to 111,675.60, 154,110.60 and 61,373.52 is: 84,694.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,675.60 : 154,110.60 = 61,373.52 : x
  2. Step 2: Convert to fraction form
    111,675.60/154,110.60 = 61,373.52/x
  3. Step 3: Cross multiply
    111,675.60x = 154,110.60 × 61,373.52
  4. Step 4: Simplify right side
    111,675.60x = 9,458,309,991.31
  5. Step 5: Solve for x
    x = 9,458,309,991.31/111,675.60
  6. Step 6: Final answer
    x = 84,694.51

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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.