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Finding the Fourth Proportional to 111,605.61, 154,016.85 and 60,619.33

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Solution

The fourth proportional to 111,605.61, 154,016.85 and 60,619.33 is: 83,655.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,605.61 : 154,016.85 = 60,619.33 : x
  2. Step 2: Convert to fraction form
    111,605.61/154,016.85 = 60,619.33/x
  3. Step 3: Cross multiply
    111,605.61x = 154,016.85 × 60,619.33
  4. Step 4: Simplify right side
    111,605.61x = 9,336,398,868.08
  5. Step 5: Solve for x
    x = 9,336,398,868.08/111,605.61
  6. Step 6: Final answer
    x = 83,655.29

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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.