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Finding the Fourth Proportional to 71,979.54, 99,363.63 and 46,498.32

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Solution

The fourth proportional to 71,979.54, 99,363.63 and 46,498.32 is: 64,188.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,979.54 : 99,363.63 = 46,498.32 : x
  2. Step 2: Convert to fraction form
    71,979.54/99,363.63 = 46,498.32/x
  3. Step 3: Cross multiply
    71,979.54x = 99,363.63 × 46,498.32
  4. Step 4: Simplify right side
    71,979.54x = 4,620,241,864.10
  5. Step 5: Solve for x
    x = 4,620,241,864.10/71,979.54
  6. Step 6: Final answer
    x = 64,188.27

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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.