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Finding the Fourth Proportional to 67,494.84, 101,239.74 and 20,746.50

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Solution

The fourth proportional to 67,494.84, 101,239.74 and 20,746.50 is: 31,118.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,494.84 : 101,239.74 = 20,746.50 : x
  2. Step 2: Convert to fraction form
    67,494.84/101,239.74 = 20,746.50/x
  3. Step 3: Cross multiply
    67,494.84x = 101,239.74 × 20,746.50
  4. Step 4: Simplify right side
    67,494.84x = 2,100,370,265.91
  5. Step 5: Solve for x
    x = 2,100,370,265.91/67,494.84
  6. Step 6: Final answer
    x = 31,118.98

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.