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Finding the Fourth Proportional to 191,357.58, 287,051.04 and 58,249.20

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Solution

The fourth proportional to 191,357.58, 287,051.04 and 58,249.20 is: 87,378.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,357.58 : 287,051.04 = 58,249.20 : x
  2. Step 2: Convert to fraction form
    191,357.58/287,051.04 = 58,249.20/x
  3. Step 3: Cross multiply
    191,357.58x = 287,051.04 × 58,249.20
  4. Step 4: Simplify right side
    191,357.58x = 16,720,493,439.17
  5. Step 5: Solve for x
    x = 16,720,493,439.17/191,357.58
  6. Step 6: Final answer
    x = 87,378.27

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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.