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Finding the Fourth Proportional to 191,091.56, 286,636.28 and 48,936.56

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Solution

The fourth proportional to 191,091.56, 286,636.28 and 48,936.56 is: 73,404.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,091.56 : 286,636.28 = 48,936.56 : x
  2. Step 2: Convert to fraction form
    191,091.56/286,636.28 = 48,936.56/x
  3. Step 3: Cross multiply
    191,091.56x = 286,636.28 × 48,936.56
  4. Step 4: Simplify right side
    191,091.56x = 14,026,991,836.53
  5. Step 5: Solve for x
    x = 14,026,991,836.53/191,091.56
  6. Step 6: Final answer
    x = 73,404.56

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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.