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Finding the Fourth Proportional to 92,290.34, 138,317.79 and 44,916.68

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Solution

The fourth proportional to 92,290.34, 138,317.79 and 44,916.68 is: 67,317.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,290.34 : 138,317.79 = 44,916.68 : x
  2. Step 2: Convert to fraction form
    92,290.34/138,317.79 = 44,916.68/x
  3. Step 3: Cross multiply
    92,290.34x = 138,317.79 × 44,916.68
  4. Step 4: Simplify right side
    92,290.34x = 6,212,775,911.74
  5. Step 5: Solve for x
    x = 6,212,775,911.74/92,290.34
  6. Step 6: Final answer
    x = 67,317.73

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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.