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Finding the Fourth Proportional to 80,416.01, 110,979.13 and 46,430.71

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Solution

The fourth proportional to 80,416.01, 110,979.13 and 46,430.71 is: 64,077.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,416.01 : 110,979.13 = 46,430.71 : x
  2. Step 2: Convert to fraction form
    80,416.01/110,979.13 = 46,430.71/x
  3. Step 3: Cross multiply
    80,416.01x = 110,979.13 × 46,430.71
  4. Step 4: Simplify right side
    80,416.01x = 5,152,839,801.08
  5. Step 5: Solve for x
    x = 5,152,839,801.08/80,416.01
  6. Step 6: Final answer
    x = 64,077.29

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