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Finding the Fourth Proportional to 78,776.35, 108,728.22 and 46,498.96

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Solution

The fourth proportional to 78,776.35, 108,728.22 and 46,498.96 is: 64,178.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,776.35 : 108,728.22 = 46,498.96 : x
  2. Step 2: Convert to fraction form
    78,776.35/108,728.22 = 46,498.96/x
  3. Step 3: Cross multiply
    78,776.35x = 108,728.22 × 46,498.96
  4. Step 4: Simplify right side
    78,776.35x = 5,055,749,462.93
  5. Step 5: Solve for x
    x = 5,055,749,462.93/78,776.35
  6. Step 6: Final answer
    x = 64,178.52

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.