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Finding the Fourth Proportional to 191,551.86, 287,344.29 and 49,395.92

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Solution

The fourth proportional to 191,551.86, 287,344.29 and 49,395.92 is: 74,098.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,551.86 : 287,344.29 = 49,395.92 : x
  2. Step 2: Convert to fraction form
    191,551.86/287,344.29 = 49,395.92/x
  3. Step 3: Cross multiply
    191,551.86x = 287,344.29 × 49,395.92
  4. Step 4: Simplify right side
    191,551.86x = 14,193,634,124.58
  5. Step 5: Solve for x
    x = 14,193,634,124.58/191,551.86
  6. Step 6: Final answer
    x = 74,098.13

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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.