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Finding the Fourth Proportional to 114,615.78, 171,925.79 and 39,738.36

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Solution

The fourth proportional to 114,615.78, 171,925.79 and 39,738.36 is: 59,608.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,615.78 : 171,925.79 = 39,738.36 : x
  2. Step 2: Convert to fraction form
    114,615.78/171,925.79 = 39,738.36/x
  3. Step 3: Cross multiply
    114,615.78x = 171,925.79 × 39,738.36
  4. Step 4: Simplify right side
    114,615.78x = 6,832,048,737.61
  5. Step 5: Solve for x
    x = 6,832,048,737.61/114,615.78
  6. Step 6: Final answer
    x = 59,608.28

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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.