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Finding the Fourth Proportional to 140,652.83, 194,083.86 and 112,045.37

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Solution

The fourth proportional to 140,652.83, 194,083.86 and 112,045.37 is: 154,609.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,652.83 : 194,083.86 = 112,045.37 : x
  2. Step 2: Convert to fraction form
    140,652.83/194,083.86 = 112,045.37/x
  3. Step 3: Cross multiply
    140,652.83x = 194,083.86 × 112,045.37
  4. Step 4: Simplify right side
    140,652.83x = 21,746,197,904.73
  5. Step 5: Solve for x
    x = 21,746,197,904.73/140,652.83
  6. Step 6: Final answer
    x = 154,609.03

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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.