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Finding the Fourth Proportional to 79,362.40, 119,043.60 and 61,845.34

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Solution

The fourth proportional to 79,362.40, 119,043.60 and 61,845.34 is: 92,768.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,362.40 : 119,043.60 = 61,845.34 : x
  2. Step 2: Convert to fraction form
    79,362.40/119,043.60 = 61,845.34/x
  3. Step 3: Cross multiply
    79,362.40x = 119,043.60 × 61,845.34
  4. Step 4: Simplify right side
    79,362.40x = 7,362,291,916.82
  5. Step 5: Solve for x
    x = 7,362,291,916.82/79,362.40
  6. Step 6: Final answer
    x = 92,768.01

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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.