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Finding the Fourth Proportional to 64,661.44, 96,856.80 and 52,110.40

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Solution

The fourth proportional to 64,661.44, 96,856.80 and 52,110.40 is: 78,056.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,661.44 : 96,856.80 = 52,110.40 : x
  2. Step 2: Convert to fraction form
    64,661.44/96,856.80 = 52,110.40/x
  3. Step 3: Cross multiply
    64,661.44x = 96,856.80 × 52,110.40
  4. Step 4: Simplify right side
    64,661.44x = 5,047,246,590.72
  5. Step 5: Solve for x
    x = 5,047,246,590.72/64,661.44
  6. Step 6: Final answer
    x = 78,056.51

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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.