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Finding the Fourth Proportional to 92,607.13, 138,914.60 and 45,165.70

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Solution

The fourth proportional to 92,607.13, 138,914.60 and 45,165.70 is: 67,750.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,607.13 : 138,914.60 = 45,165.70 : x
  2. Step 2: Convert to fraction form
    92,607.13/138,914.60 = 45,165.70/x
  3. Step 3: Cross multiply
    92,607.13x = 138,914.60 × 45,165.70
  4. Step 4: Simplify right side
    92,607.13x = 6,274,175,097.03
  5. Step 5: Solve for x
    x = 6,274,175,097.03/92,607.13
  6. Step 6: Final answer
    x = 67,750.45

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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.