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Finding the Fourth Proportional to 111,605.74, 154,017.06 and 60,618.97

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Solution

The fourth proportional to 111,605.74, 154,017.06 and 60,618.97 is: 83,654.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,605.74 : 154,017.06 = 60,618.97 : x
  2. Step 2: Convert to fraction form
    111,605.74/154,017.06 = 60,618.97/x
  3. Step 3: Cross multiply
    111,605.74x = 154,017.06 × 60,618.97
  4. Step 4: Simplify right side
    111,605.74x = 9,336,354,466.45
  5. Step 5: Solve for x
    x = 9,336,354,466.45/111,605.74
  6. Step 6: Final answer
    x = 83,654.79

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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.