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Finding the Fourth Proportional to 64,430.44, 88,918.45 and 36,137.95

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Solution

The fourth proportional to 64,430.44, 88,918.45 and 36,137.95 is: 49,872.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,430.44 : 88,918.45 = 36,137.95 : x
  2. Step 2: Convert to fraction form
    64,430.44/88,918.45 = 36,137.95/x
  3. Step 3: Cross multiply
    64,430.44x = 88,918.45 × 36,137.95
  4. Step 4: Simplify right side
    64,430.44x = 3,213,330,789.34
  5. Step 5: Solve for x
    x = 3,213,330,789.34/64,430.44
  6. Step 6: Final answer
    x = 49,872.86

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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.