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Finding the Fourth Proportional to 61,521.68, 91,945.35 and 44,916.68

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Solution

The fourth proportional to 61,521.68, 91,945.35 and 44,916.68 is: 67,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,521.68 : 91,945.35 = 44,916.68 : x
  2. Step 2: Convert to fraction form
    61,521.68/91,945.35 = 44,916.68/x
  3. Step 3: Cross multiply
    61,521.68x = 91,945.35 × 44,916.68
  4. Step 4: Simplify right side
    61,521.68x = 4,129,879,572.15
  5. Step 5: Solve for x
    x = 4,129,879,572.15/61,521.68
  6. Step 6: Final answer
    x = 67,128.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.