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Finding the Fourth Proportional to 163,754.46, 245,691.77 and 69,008.49

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Solution

The fourth proportional to 163,754.46, 245,691.77 and 69,008.49 is: 103,538.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,754.46 : 245,691.77 = 69,008.49 : x
  2. Step 2: Convert to fraction form
    163,754.46/245,691.77 = 69,008.49/x
  3. Step 3: Cross multiply
    163,754.46x = 245,691.77 × 69,008.49
  4. Step 4: Simplify right side
    163,754.46x = 16,954,817,708.08
  5. Step 5: Solve for x
    x = 16,954,817,708.08/163,754.46
  6. Step 6: Final answer
    x = 103,538.05

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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.