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Finding the Fourth Proportional to 111,843.64, 154,343.64 and 64,095.76

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Solution

The fourth proportional to 111,843.64, 154,343.64 and 64,095.76 is: 88,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,843.64 : 154,343.64 = 64,095.76 : x
  2. Step 2: Convert to fraction form
    111,843.64/154,343.64 = 64,095.76/x
  3. Step 3: Cross multiply
    111,843.64x = 154,343.64 × 64,095.76
  4. Step 4: Simplify right side
    111,843.64x = 9,892,772,906.97
  5. Step 5: Solve for x
    x = 9,892,772,906.97/111,843.64
  6. Step 6: Final answer
    x = 88,451.81

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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.