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Finding the Fourth Proportional to 64,138.66, 88,503.68 and 35,454.45

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Solution

The fourth proportional to 64,138.66, 88,503.68 and 35,454.45 is: 48,922.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,138.66 : 88,503.68 = 35,454.45 : x
  2. Step 2: Convert to fraction form
    64,138.66/88,503.68 = 35,454.45/x
  3. Step 3: Cross multiply
    64,138.66x = 88,503.68 × 35,454.45
  4. Step 4: Simplify right side
    64,138.66x = 3,137,848,854.86
  5. Step 5: Solve for x
    x = 3,137,848,854.86/64,138.66
  6. Step 6: Final answer
    x = 48,922.89

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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.