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Finding the Fourth Proportional to 92,643.33, 138,944.04 and 55,214.04

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Solution

The fourth proportional to 92,643.33, 138,944.04 and 55,214.04 is: 82,808.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,643.33 : 138,944.04 = 55,214.04 : x
  2. Step 2: Convert to fraction form
    92,643.33/138,944.04 = 55,214.04/x
  3. Step 3: Cross multiply
    92,643.33x = 138,944.04 × 55,214.04
  4. Step 4: Simplify right side
    92,643.33x = 7,671,661,782.32
  5. Step 5: Solve for x
    x = 7,671,661,782.32/92,643.33
  6. Step 6: Final answer
    x = 82,808.57

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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.