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Finding the Fourth Proportional to 133,391.88, 184,085.90 and 76,040.23

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Solution

The fourth proportional to 133,391.88, 184,085.90 and 76,040.23 is: 104,938.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,391.88 : 184,085.90 = 76,040.23 : x
  2. Step 2: Convert to fraction form
    133,391.88/184,085.90 = 76,040.23/x
  3. Step 3: Cross multiply
    133,391.88x = 184,085.90 × 76,040.23
  4. Step 4: Simplify right side
    133,391.88x = 13,997,934,175.76
  5. Step 5: Solve for x
    x = 13,997,934,175.76/133,391.88
  6. Step 6: Final answer
    x = 104,938.43

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1.5x scale

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.