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Finding the Fourth Proportional to 64,961.70, 97,442.55 and 61,025.10

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Solution

The fourth proportional to 64,961.70, 97,442.55 and 61,025.10 is: 91,537.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,961.70 : 97,442.55 = 61,025.10 : x
  2. Step 2: Convert to fraction form
    64,961.70/97,442.55 = 61,025.10/x
  3. Step 3: Cross multiply
    64,961.70x = 97,442.55 × 61,025.10
  4. Step 4: Simplify right side
    64,961.70x = 5,946,441,358.01
  5. Step 5: Solve for x
    x = 5,946,441,358.01/64,961.70
  6. Step 6: Final answer
    x = 91,537.65

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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.