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Finding the Fourth Proportional to 69,656.95, 96,141.90 and 45,785.85

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Solution

The fourth proportional to 69,656.95, 96,141.90 and 45,785.85 is: 63,194.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,656.95 : 96,141.90 = 45,785.85 : x
  2. Step 2: Convert to fraction form
    69,656.95/96,141.90 = 45,785.85/x
  3. Step 3: Cross multiply
    69,656.95x = 96,141.90 × 45,785.85
  4. Step 4: Simplify right side
    69,656.95x = 4,401,938,612.12
  5. Step 5: Solve for x
    x = 4,401,938,612.12/69,656.95
  6. Step 6: Final answer
    x = 63,194.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.