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Finding the Fourth Proportional to 191,491.29, 287,234.91 and 49,335.99

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Solution

The fourth proportional to 191,491.29, 287,234.91 and 49,335.99 is: 74,003.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,491.29 : 287,234.91 = 49,335.99 : x
  2. Step 2: Convert to fraction form
    191,491.29/287,234.91 = 49,335.99/x
  3. Step 3: Cross multiply
    191,491.29x = 287,234.91 × 49,335.99
  4. Step 4: Simplify right side
    191,491.29x = 14,171,018,647.41
  5. Step 5: Solve for x
    x = 14,171,018,647.41/191,491.29
  6. Step 6: Final answer
    x = 74,003.46

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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.