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Finding the Fourth Proportional to 64,121.55, 88,518.86 and 45,041.86

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Solution

The fourth proportional to 64,121.55, 88,518.86 and 45,041.86 is: 62,179.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,121.55 : 88,518.86 = 45,041.86 : x
  2. Step 2: Convert to fraction form
    64,121.55/88,518.86 = 45,041.86/x
  3. Step 3: Cross multiply
    64,121.55x = 88,518.86 × 45,041.86
  4. Step 4: Simplify right side
    64,121.55x = 3,987,054,099.48
  5. Step 5: Solve for x
    x = 3,987,054,099.48/64,121.55
  6. Step 6: Final answer
    x = 62,179.63

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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.