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Finding the Fourth Proportional to 64,851.60, 97,223.40 and 27,440.40

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Solution

The fourth proportional to 64,851.60, 97,223.40 and 27,440.40 is: 41,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,851.60 : 97,223.40 = 27,440.40 : x
  2. Step 2: Convert to fraction form
    64,851.60/97,223.40 = 27,440.40/x
  3. Step 3: Cross multiply
    64,851.60x = 97,223.40 × 27,440.40
  4. Step 4: Simplify right side
    64,851.60x = 2,667,848,985.36
  5. Step 5: Solve for x
    x = 2,667,848,985.36/64,851.60
  6. Step 6: Final answer
    x = 41,137.75

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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.