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Finding the Fourth Proportional to 64,794,771.76, 89,416,945.80 and 35,427,999.28

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Solution

The fourth proportional to 64,794,771.76, 89,416,945.80 and 35,427,999.28 is: 48,890,726.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,794,771.76 : 89,416,945.80 = 35,427,999.28 : x
  2. Step 2: Convert to fraction form
    64,794,771.76/89,416,945.80 = 35,427,999.28/x
  3. Step 3: Cross multiply
    64,794,771.76x = 89,416,945.80 × 35,427,999.28
  4. Step 4: Simplify right side
    64,794,771.76x = 3,167,863,491,422,199
  5. Step 5: Solve for x
    x = 3,167,863,491,422,199/64,794,771.76
  6. Step 6: Final answer
    x = 48,890,726.91

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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.