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Finding the Fourth Proportional to 70,076.32, 104,930.48 and 55,971.36

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Solution

The fourth proportional to 70,076.32, 104,930.48 and 55,971.36 is: 83,810.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,076.32 : 104,930.48 = 55,971.36 : x
  2. Step 2: Convert to fraction form
    70,076.32/104,930.48 = 55,971.36/x
  3. Step 3: Cross multiply
    70,076.32x = 104,930.48 × 55,971.36
  4. Step 4: Simplify right side
    70,076.32x = 5,873,101,671.05
  5. Step 5: Solve for x
    x = 5,873,101,671.05/70,076.32
  6. Step 6: Final answer
    x = 83,810.08

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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.