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Finding the Fourth Proportional to 64,971.76, 97,355.56 and 50,216.80

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Solution

The fourth proportional to 64,971.76, 97,355.56 and 50,216.80 is: 75,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,971.76 : 97,355.56 = 50,216.80 : x
  2. Step 2: Convert to fraction form
    64,971.76/97,355.56 = 50,216.80/x
  3. Step 3: Cross multiply
    64,971.76x = 97,355.56 × 50,216.80
  4. Step 4: Simplify right side
    64,971.76x = 4,888,884,685.41
  5. Step 5: Solve for x
    x = 4,888,884,685.41/64,971.76
  6. Step 6: Final answer
    x = 75,246.30

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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.