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Finding the Fourth Proportional to 133,394, 184,085.17 and 72,963.32

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Solution

The fourth proportional to 133,394, 184,085.17 and 72,963.32 is: 100,690.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,394 : 184,085.17 = 72,963.32 : x
  2. Step 2: Convert to fraction form
    133,394/184,085.17 = 72,963.32/x
  3. Step 3: Cross multiply
    133,394x = 184,085.17 × 72,963.32
  4. Step 4: Simplify right side
    133,394x = 13,431,465,165.96
  5. Step 5: Solve for x
    x = 13,431,465,165.96/133,394
  6. Step 6: Final answer
    x = 100,690.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.