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Finding the Fourth Proportional to 111,958.64, 154,501.08 and 61,662.32

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Solution

The fourth proportional to 111,958.64, 154,501.08 and 61,662.32 is: 85,092.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,958.64 : 154,501.08 = 61,662.32 : x
  2. Step 2: Convert to fraction form
    111,958.64/154,501.08 = 61,662.32/x
  3. Step 3: Cross multiply
    111,958.64x = 154,501.08 × 61,662.32
  4. Step 4: Simplify right side
    111,958.64x = 9,526,895,035.31
  5. Step 5: Solve for x
    x = 9,526,895,035.31/111,958.64
  6. Step 6: Final answer
    x = 85,092.99

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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.