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Finding the Fourth Proportional to 69,109.65, 95,400.74 and 46,461.78

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Solution

The fourth proportional to 69,109.65, 95,400.74 and 46,461.78 is: 64,137.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,109.65 : 95,400.74 = 46,461.78 : x
  2. Step 2: Convert to fraction form
    69,109.65/95,400.74 = 46,461.78/x
  3. Step 3: Cross multiply
    69,109.65x = 95,400.74 × 46,461.78
  4. Step 4: Simplify right side
    69,109.65x = 4,432,488,193.72
  5. Step 5: Solve for x
    x = 4,432,488,193.72/69,109.65
  6. Step 6: Final answer
    x = 64,137.04

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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.