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Finding the Fourth Proportional to 101,492.08, 140,056.20 and 56,171.94

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Solution

The fourth proportional to 101,492.08, 140,056.20 and 56,171.94 is: 77,515.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,492.08 : 140,056.20 = 56,171.94 : x
  2. Step 2: Convert to fraction form
    101,492.08/140,056.20 = 56,171.94/x
  3. Step 3: Cross multiply
    101,492.08x = 140,056.20 × 56,171.94
  4. Step 4: Simplify right side
    101,492.08x = 7,867,228,463.03
  5. Step 5: Solve for x
    x = 7,867,228,463.03/101,492.08
  6. Step 6: Final answer
    x = 77,515.69

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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.