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Finding the Fourth Proportional to 74,694, 103,079.92 and 41,162.16

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Solution

The fourth proportional to 74,694, 103,079.92 and 41,162.16 is: 56,804.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,694 : 103,079.92 = 41,162.16 : x
  2. Step 2: Convert to fraction form
    74,694/103,079.92 = 41,162.16/x
  3. Step 3: Cross multiply
    74,694x = 103,079.92 × 41,162.16
  4. Step 4: Simplify right side
    74,694x = 4,242,992,159.83
  5. Step 5: Solve for x
    x = 4,242,992,159.83/74,694
  6. Step 6: Final answer
    x = 56,804.99

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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.