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Finding the Fourth Proportional to 92,603.16, 138,938.04 and 36,412.11

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Solution

The fourth proportional to 92,603.16, 138,938.04 and 36,412.11 is: 54,631.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,603.16 : 138,938.04 = 36,412.11 : x
  2. Step 2: Convert to fraction form
    92,603.16/138,938.04 = 36,412.11/x
  3. Step 3: Cross multiply
    92,603.16x = 138,938.04 × 36,412.11
  4. Step 4: Simplify right side
    92,603.16x = 5,059,027,195.66
  5. Step 5: Solve for x
    x = 5,059,027,195.66/92,603.16
  6. Step 6: Final answer
    x = 54,631.26

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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.