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Finding the Fourth Proportional to 64,615.15, 96,909.95 and 61,410.98

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Solution

The fourth proportional to 64,615.15, 96,909.95 and 61,410.98 is: 92,104.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,615.15 : 96,909.95 = 61,410.98 : x
  2. Step 2: Convert to fraction form
    64,615.15/96,909.95 = 61,410.98/x
  3. Step 3: Cross multiply
    64,615.15x = 96,909.95 × 61,410.98
  4. Step 4: Simplify right side
    64,615.15x = 5,951,334,573.06
  5. Step 5: Solve for x
    x = 5,951,334,573.06/64,615.15
  6. Step 6: Final answer
    x = 92,104.33

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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.