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Finding the Fourth Proportional to 64,389.92, 96,650.51 and 44,400.74

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Solution

The fourth proportional to 64,389.92, 96,650.51 and 44,400.74 is: 66,646.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,389.92 : 96,650.51 = 44,400.74 : x
  2. Step 2: Convert to fraction form
    64,389.92/96,650.51 = 44,400.74/x
  3. Step 3: Cross multiply
    64,389.92x = 96,650.51 × 44,400.74
  4. Step 4: Simplify right side
    64,389.92x = 4,291,353,460.12
  5. Step 5: Solve for x
    x = 4,291,353,460.12/64,389.92
  6. Step 6: Final answer
    x = 66,646.36

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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.