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Finding the Fourth Proportional to 191,199.96, 286,728.68 and 56,227.91

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Solution

The fourth proportional to 191,199.96, 286,728.68 and 56,227.91 is: 84,320.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,199.96 : 286,728.68 = 56,227.91 : x
  2. Step 2: Convert to fraction form
    191,199.96/286,728.68 = 56,227.91/x
  3. Step 3: Cross multiply
    191,199.96x = 286,728.68 × 56,227.91
  4. Step 4: Simplify right side
    191,199.96x = 16,122,153,120.39
  5. Step 5: Solve for x
    x = 16,122,153,120.39/191,199.96
  6. Step 6: Final answer
    x = 84,320.90

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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.