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Finding the Fourth Proportional to 84,495.48, 126,697.76 and 33,869.12

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Solution

The fourth proportional to 84,495.48, 126,697.76 and 33,869.12 is: 50,785.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,495.48 : 126,697.76 = 33,869.12 : x
  2. Step 2: Convert to fraction form
    84,495.48/126,697.76 = 33,869.12/x
  3. Step 3: Cross multiply
    84,495.48x = 126,697.76 × 33,869.12
  4. Step 4: Simplify right side
    84,495.48x = 4,291,141,637.17
  5. Step 5: Solve for x
    x = 4,291,141,637.17/84,495.48
  6. Step 6: Final answer
    x = 50,785.46

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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.