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Finding the Fourth Proportional to 64,614.40, 96,766.08 and 43,774.72

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Solution

The fourth proportional to 64,614.40, 96,766.08 and 43,774.72 is: 65,556.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,614.40 : 96,766.08 = 43,774.72 : x
  2. Step 2: Convert to fraction form
    64,614.40/96,766.08 = 43,774.72/x
  3. Step 3: Cross multiply
    64,614.40x = 96,766.08 × 43,774.72
  4. Step 4: Simplify right side
    64,614.40x = 4,235,908,057.50
  5. Step 5: Solve for x
    x = 4,235,908,057.50/64,614.40
  6. Step 6: Final answer
    x = 65,556.72

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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.