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Finding the Fourth Proportional to 92,605.44, 138,908.16 and 61,501.44

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Solution

The fourth proportional to 92,605.44, 138,908.16 and 61,501.44 is: 92,252.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,605.44 : 138,908.16 = 61,501.44 : x
  2. Step 2: Convert to fraction form
    92,605.44/138,908.16 = 61,501.44/x
  3. Step 3: Cross multiply
    92,605.44x = 138,908.16 × 61,501.44
  4. Step 4: Simplify right side
    92,605.44x = 8,543,051,867.75
  5. Step 5: Solve for x
    x = 8,543,051,867.75/92,605.44
  6. Step 6: Final answer
    x = 92,252.16

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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.