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Finding the Fourth Proportional to 193,719.29, 290,037.65 and 104,653.72

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Solution

The fourth proportional to 193,719.29, 290,037.65 and 104,653.72 is: 156,688.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,719.29 : 290,037.65 = 104,653.72 : x
  2. Step 2: Convert to fraction form
    193,719.29/290,037.65 = 104,653.72/x
  3. Step 3: Cross multiply
    193,719.29x = 290,037.65 × 104,653.72
  4. Step 4: Simplify right side
    193,719.29x = 30,353,517,562.37
  5. Step 5: Solve for x
    x = 30,353,517,562.37/193,719.29
  6. Step 6: Final answer
    x = 156,688.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.