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Finding the Fourth Proportional to 76,518.88, 114,564.48 and 41,332.48

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Solution

The fourth proportional to 76,518.88, 114,564.48 and 41,332.48 is: 61,883.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,518.88 : 114,564.48 = 41,332.48 : x
  2. Step 2: Convert to fraction form
    76,518.88/114,564.48 = 41,332.48/x
  3. Step 3: Cross multiply
    76,518.88x = 114,564.48 × 41,332.48
  4. Step 4: Simplify right side
    76,518.88x = 4,735,234,078.31
  5. Step 5: Solve for x
    x = 4,735,234,078.31/76,518.88
  6. Step 6: Final answer
    x = 61,883.21

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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.