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Finding the Fourth Proportional to 145,319.88, 217,963.62 and 50,533.68

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Solution

The fourth proportional to 145,319.88, 217,963.62 and 50,533.68 is: 75,794.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,319.88 : 217,963.62 = 50,533.68 : x
  2. Step 2: Convert to fraction form
    145,319.88/217,963.62 = 50,533.68/x
  3. Step 3: Cross multiply
    145,319.88x = 217,963.62 × 50,533.68
  4. Step 4: Simplify right side
    145,319.88x = 11,014,503,824.72
  5. Step 5: Solve for x
    x = 11,014,503,824.72/145,319.88
  6. Step 6: Final answer
    x = 75,794.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.