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Finding the Fourth Proportional to 66,494.94, 99,742.44 and 38,773.50

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Solution

The fourth proportional to 66,494.94, 99,742.44 and 38,773.50 is: 58,160.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,494.94 : 99,742.44 = 38,773.50 : x
  2. Step 2: Convert to fraction form
    66,494.94/99,742.44 = 38,773.50/x
  3. Step 3: Cross multiply
    66,494.94x = 99,742.44 × 38,773.50
  4. Step 4: Simplify right side
    66,494.94x = 3,867,363,497.34
  5. Step 5: Solve for x
    x = 3,867,363,497.34/66,494.94
  6. Step 6: Final answer
    x = 58,160.27

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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.