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Finding the Fourth Proportional to 236,261, 354,391.50 and 61,157

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Solution

The fourth proportional to 236,261, 354,391.50 and 61,157 is: 91,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,261 : 354,391.50 = 61,157 : x
  2. Step 2: Convert to fraction form
    236,261/354,391.50 = 61,157/x
  3. Step 3: Cross multiply
    236,261x = 354,391.50 × 61,157
  4. Step 4: Simplify right side
    236,261x = 21,673,520,965.50
  5. Step 5: Solve for x
    x = 21,673,520,965.50/236,261
  6. Step 6: Final answer
    x = 91,735.50

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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.