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Finding the Fourth Proportional to 64,467.92, 88,942.92 and 42,124.88

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Solution

The fourth proportional to 64,467.92, 88,942.92 and 42,124.88 is: 58,117.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,467.92 : 88,942.92 = 42,124.88 : x
  2. Step 2: Convert to fraction form
    64,467.92/88,942.92 = 42,124.88/x
  3. Step 3: Cross multiply
    64,467.92x = 88,942.92 × 42,124.88
  4. Step 4: Simplify right side
    64,467.92x = 3,746,709,831.85
  5. Step 5: Solve for x
    x = 3,746,709,831.85/64,467.92
  6. Step 6: Final answer
    x = 58,117.43

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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.