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Finding the Fourth Proportional to 64,129.60, 88,498.64 and 35,835.28

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Solution

The fourth proportional to 64,129.60, 88,498.64 and 35,835.28 is: 49,452.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,129.60 : 88,498.64 = 35,835.28 : x
  2. Step 2: Convert to fraction form
    64,129.60/88,498.64 = 35,835.28/x
  3. Step 3: Cross multiply
    64,129.60x = 88,498.64 × 35,835.28
  4. Step 4: Simplify right side
    64,129.60x = 3,171,373,544.02
  5. Step 5: Solve for x
    x = 3,171,373,544.02/64,129.60
  6. Step 6: Final answer
    x = 49,452.57

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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.