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Finding the Fourth Proportional to 191,100.60, 286,650.90 and 72,826.68

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Solution

The fourth proportional to 191,100.60, 286,650.90 and 72,826.68 is: 109,240.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,100.60 : 286,650.90 = 72,826.68 : x
  2. Step 2: Convert to fraction form
    191,100.60/286,650.90 = 72,826.68/x
  3. Step 3: Cross multiply
    191,100.60x = 286,650.90 × 72,826.68
  4. Step 4: Simplify right side
    191,100.60x = 20,875,833,366.01
  5. Step 5: Solve for x
    x = 20,875,833,366.01/191,100.60
  6. Step 6: Final answer
    x = 109,240.02

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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.