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Finding the Fourth Proportional to 92,788.94, 139,115.25 and 29,572.69

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Solution

The fourth proportional to 92,788.94, 139,115.25 and 29,572.69 is: 44,337.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,788.94 : 139,115.25 = 29,572.69 : x
  2. Step 2: Convert to fraction form
    92,788.94/139,115.25 = 29,572.69/x
  3. Step 3: Cross multiply
    92,788.94x = 139,115.25 × 29,572.69
  4. Step 4: Simplify right side
    92,788.94x = 4,114,011,466.95
  5. Step 5: Solve for x
    x = 4,114,011,466.95/92,788.94
  6. Step 6: Final answer
    x = 44,337.30

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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.