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Finding the Fourth Proportional to 122,670.89, 184,006.32 and 39,564.89

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Solution

The fourth proportional to 122,670.89, 184,006.32 and 39,564.89 is: 59,347.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,670.89 : 184,006.32 = 39,564.89 : x
  2. Step 2: Convert to fraction form
    122,670.89/184,006.32 = 39,564.89/x
  3. Step 3: Cross multiply
    122,670.89x = 184,006.32 × 39,564.89
  4. Step 4: Simplify right side
    122,670.89x = 7,280,189,810.10
  5. Step 5: Solve for x
    x = 7,280,189,810.10/122,670.89
  6. Step 6: Final answer
    x = 59,347.33

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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.