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Finding the Fourth Proportional to 163,611, 245,284.92 and 92,489.76

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Solution

The fourth proportional to 163,611, 245,284.92 and 92,489.76 is: 138,660.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,611 : 245,284.92 = 92,489.76 : x
  2. Step 2: Convert to fraction form
    163,611/245,284.92 = 92,489.76/x
  3. Step 3: Cross multiply
    163,611x = 245,284.92 × 92,489.76
  4. Step 4: Simplify right side
    163,611x = 22,686,343,382.42
  5. Step 5: Solve for x
    x = 22,686,343,382.42/163,611
  6. Step 6: Final answer
    x = 138,660.26

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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.