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Finding the Fourth Proportional to 64,743.60, 97,115.40 and 44,007.60

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Solution

The fourth proportional to 64,743.60, 97,115.40 and 44,007.60 is: 66,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,743.60 : 97,115.40 = 44,007.60 : x
  2. Step 2: Convert to fraction form
    64,743.60/97,115.40 = 44,007.60/x
  3. Step 3: Cross multiply
    64,743.60x = 97,115.40 × 44,007.60
  4. Step 4: Simplify right side
    64,743.60x = 4,273,815,677.04
  5. Step 5: Solve for x
    x = 4,273,815,677.04/64,743.60
  6. Step 6: Final answer
    x = 66,011.40

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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.