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Finding the Fourth Proportional to 92,618.16, 138,933.36 and 36,453.84

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Solution

The fourth proportional to 92,618.16, 138,933.36 and 36,453.84 is: 54,683.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,618.16 : 138,933.36 = 36,453.84 : x
  2. Step 2: Convert to fraction form
    92,618.16/138,933.36 = 36,453.84/x
  3. Step 3: Cross multiply
    92,618.16x = 138,933.36 × 36,453.84
  4. Step 4: Simplify right side
    92,618.16x = 5,064,654,476.10
  5. Step 5: Solve for x
    x = 5,064,654,476.10/92,618.16
  6. Step 6: Final answer
    x = 54,683.17

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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.