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Finding the Fourth Proportional to 64,807.20, 97,016.40 and 60,962.40

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Solution

The fourth proportional to 64,807.20, 97,016.40 and 60,962.40 is: 91,260.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,807.20 : 97,016.40 = 60,962.40 : x
  2. Step 2: Convert to fraction form
    64,807.20/97,016.40 = 60,962.40/x
  3. Step 3: Cross multiply
    64,807.20x = 97,016.40 × 60,962.40
  4. Step 4: Simplify right side
    64,807.20x = 5,914,352,583.36
  5. Step 5: Solve for x
    x = 5,914,352,583.36/64,807.20
  6. Step 6: Final answer
    x = 91,260.73

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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.