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Finding the Fourth Proportional to 64,908.40, 97,362.60 and 61,846.60

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Solution

The fourth proportional to 64,908.40, 97,362.60 and 61,846.60 is: 92,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,908.40 : 97,362.60 = 61,846.60 : x
  2. Step 2: Convert to fraction form
    64,908.40/97,362.60 = 61,846.60/x
  3. Step 3: Cross multiply
    64,908.40x = 97,362.60 × 61,846.60
  4. Step 4: Simplify right side
    64,908.40x = 6,021,545,777.16
  5. Step 5: Solve for x
    x = 6,021,545,777.16/64,908.40
  6. Step 6: Final answer
    x = 92,769.90

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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.