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Finding the Fourth Proportional to 191,216.71, 286,264.32 and 134,092.54

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Solution

The fourth proportional to 191,216.71, 286,264.32 and 134,092.54 is: 200,745.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,216.71 : 286,264.32 = 134,092.54 : x
  2. Step 2: Convert to fraction form
    191,216.71/286,264.32 = 134,092.54/x
  3. Step 3: Cross multiply
    191,216.71x = 286,264.32 × 134,092.54
  4. Step 4: Simplify right side
    191,216.71x = 38,385,909,780.17
  5. Step 5: Solve for x
    x = 38,385,909,780.17/191,216.71
  6. Step 6: Final answer
    x = 200,745.58

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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.