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Finding the Fourth Proportional to 112,183.51, 154,810.77 and 61,882.51

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Solution

The fourth proportional to 112,183.51, 154,810.77 and 61,882.51 is: 85,396.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,183.51 : 154,810.77 = 61,882.51 : x
  2. Step 2: Convert to fraction form
    112,183.51/154,810.77 = 61,882.51/x
  3. Step 3: Cross multiply
    112,183.51x = 154,810.77 × 61,882.51
  4. Step 4: Simplify right side
    112,183.51x = 9,580,079,022.63
  5. Step 5: Solve for x
    x = 9,580,079,022.63/112,183.51
  6. Step 6: Final answer
    x = 85,396.50

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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.