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Finding the Fourth Proportional to 64,348.92, 88,788.84 and 40,461.72

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Solution

The fourth proportional to 64,348.92, 88,788.84 and 40,461.72 is: 55,829.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,348.92 : 88,788.84 = 40,461.72 : x
  2. Step 2: Convert to fraction form
    64,348.92/88,788.84 = 40,461.72/x
  3. Step 3: Cross multiply
    64,348.92x = 88,788.84 × 40,461.72
  4. Step 4: Simplify right side
    64,348.92x = 3,592,549,183.20
  5. Step 5: Solve for x
    x = 3,592,549,183.20/64,348.92
  6. Step 6: Final answer
    x = 55,829.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.