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Finding the Fourth Proportional to 64,356.60, 96,794.10 and 57,617.40

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Solution

The fourth proportional to 64,356.60, 96,794.10 and 57,617.40 is: 86,658.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,356.60 : 96,794.10 = 57,617.40 : x
  2. Step 2: Convert to fraction form
    64,356.60/96,794.10 = 57,617.40/x
  3. Step 3: Cross multiply
    64,356.60x = 96,794.10 × 57,617.40
  4. Step 4: Simplify right side
    64,356.60x = 5,577,024,377.34
  5. Step 5: Solve for x
    x = 5,577,024,377.34/64,356.60
  6. Step 6: Final answer
    x = 86,658.16

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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.