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Finding the Fourth Proportional to 74,651.93, 111,714.80 and 46,585.20

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Solution

The fourth proportional to 74,651.93, 111,714.80 and 46,585.20 is: 69,713.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,651.93 : 111,714.80 = 46,585.20 : x
  2. Step 2: Convert to fraction form
    74,651.93/111,714.80 = 46,585.20/x
  3. Step 3: Cross multiply
    74,651.93x = 111,714.80 × 46,585.20
  4. Step 4: Simplify right side
    74,651.93x = 5,204,256,068.03
  5. Step 5: Solve for x
    x = 5,204,256,068.03/74,651.93
  6. Step 6: Final answer
    x = 69,713.62

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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.