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Finding the Fourth Proportional to 64,929.20, 97,240.20 and 44,039.60

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Solution

The fourth proportional to 64,929.20, 97,240.20 and 44,039.60 is: 65,955.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,929.20 : 97,240.20 = 44,039.60 : x
  2. Step 2: Convert to fraction form
    64,929.20/97,240.20 = 44,039.60/x
  3. Step 3: Cross multiply
    64,929.20x = 97,240.20 × 44,039.60
  4. Step 4: Simplify right side
    64,929.20x = 4,282,419,511.92
  5. Step 5: Solve for x
    x = 4,282,419,511.92/64,929.20
  6. Step 6: Final answer
    x = 65,955.22

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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.