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Finding the Fourth Proportional to 84,603.37, 126,921.05 and 34,006.34

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Solution

The fourth proportional to 84,603.37, 126,921.05 and 34,006.34 is: 51,015.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,603.37 : 126,921.05 = 34,006.34 : x
  2. Step 2: Convert to fraction form
    84,603.37/126,921.05 = 34,006.34/x
  3. Step 3: Cross multiply
    84,603.37x = 126,921.05 × 34,006.34
  4. Step 4: Simplify right side
    84,603.37x = 4,316,119,829.87
  5. Step 5: Solve for x
    x = 4,316,119,829.87/84,603.37
  6. Step 6: Final answer
    x = 51,015.93

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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.