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Finding the Fourth Proportional to 111,853.62, 154,353.33 and 61,549.38

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Solution

The fourth proportional to 111,853.62, 154,353.33 and 61,549.38 is: 84,935.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,853.62 : 154,353.33 = 61,549.38 : x
  2. Step 2: Convert to fraction form
    111,853.62/154,353.33 = 61,549.38/x
  3. Step 3: Cross multiply
    111,853.62x = 154,353.33 × 61,549.38
  4. Step 4: Simplify right side
    111,853.62x = 9,500,351,762.44
  5. Step 5: Solve for x
    x = 9,500,351,762.44/111,853.62
  6. Step 6: Final answer
    x = 84,935.58

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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.