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Finding the Fourth Proportional to 110,664.68, 152,730.97 and 67,635.32

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Solution

The fourth proportional to 110,664.68, 152,730.97 and 67,635.32 is: 93,345.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,664.68 : 152,730.97 = 67,635.32 : x
  2. Step 2: Convert to fraction form
    110,664.68/152,730.97 = 67,635.32/x
  3. Step 3: Cross multiply
    110,664.68x = 152,730.97 × 67,635.32
  4. Step 4: Simplify right side
    110,664.68x = 10,330,007,097.12
  5. Step 5: Solve for x
    x = 10,330,007,097.12/110,664.68
  6. Step 6: Final answer
    x = 93,345.12

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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.