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Finding the Fourth Proportional to 191,113.65, 286,672.21 and 57,993.91

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Solution

The fourth proportional to 191,113.65, 286,672.21 and 57,993.91 is: 86,991.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,113.65 : 286,672.21 = 57,993.91 : x
  2. Step 2: Convert to fraction form
    191,113.65/286,672.21 = 57,993.91/x
  3. Step 3: Cross multiply
    191,113.65x = 286,672.21 × 57,993.91
  4. Step 4: Simplify right side
    191,113.65x = 16,625,242,022.09
  5. Step 5: Solve for x
    x = 16,625,242,022.09/191,113.65
  6. Step 6: Final answer
    x = 86,991.39

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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.