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Finding the Fourth Proportional to 167,809.50, 251,823.60 and 84,703.50

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Solution

The fourth proportional to 167,809.50, 251,823.60 and 84,703.50 is: 127,110.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,809.50 : 251,823.60 = 84,703.50 : x
  2. Step 2: Convert to fraction form
    167,809.50/251,823.60 = 84,703.50/x
  3. Step 3: Cross multiply
    167,809.50x = 251,823.60 × 84,703.50
  4. Step 4: Simplify right side
    167,809.50x = 21,330,340,302.60
  5. Step 5: Solve for x
    x = 21,330,340,302.60/167,809.50
  6. Step 6: Final answer
    x = 127,110.45

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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.