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Finding the Fourth Proportional to 189,049.92, 260,893.71 and 104,167.05

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Solution

The fourth proportional to 189,049.92, 260,893.71 and 104,167.05 is: 143,753.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,049.92 : 260,893.71 = 104,167.05 : x
  2. Step 2: Convert to fraction form
    189,049.92/260,893.71 = 104,167.05/x
  3. Step 3: Cross multiply
    189,049.92x = 260,893.71 × 104,167.05
  4. Step 4: Simplify right side
    189,049.92x = 27,176,528,134.26
  5. Step 5: Solve for x
    x = 27,176,528,134.26/189,049.92
  6. Step 6: Final answer
    x = 143,753.19

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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.