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Finding the Fourth Proportional to 64,124.70, 88,489.32 and 35,442.87

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Solution

The fourth proportional to 64,124.70, 88,489.32 and 35,442.87 is: 48,909.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,124.70 : 88,489.32 = 35,442.87 : x
  2. Step 2: Convert to fraction form
    64,124.70/88,489.32 = 35,442.87/x
  3. Step 3: Cross multiply
    64,124.70x = 88,489.32 × 35,442.87
  4. Step 4: Simplify right side
    64,124.70x = 3,136,315,465.15
  5. Step 5: Solve for x
    x = 3,136,315,465.15/64,124.70
  6. Step 6: Final answer
    x = 48,909.63

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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.