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Finding the Fourth Proportional to 74,680.66, 111,757.74 and 46,613.89

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Solution

The fourth proportional to 74,680.66, 111,757.74 and 46,613.89 is: 69,756.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,680.66 : 111,757.74 = 46,613.89 : x
  2. Step 2: Convert to fraction form
    74,680.66/111,757.74 = 46,613.89/x
  3. Step 3: Cross multiply
    74,680.66x = 111,757.74 × 46,613.89
  4. Step 4: Simplify right side
    74,680.66x = 5,209,462,999.01
  5. Step 5: Solve for x
    x = 5,209,462,999.01/74,680.66
  6. Step 6: Final answer
    x = 69,756.52

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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.