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Finding the Fourth Proportional to 77,407.08, 116,373.08 and 61,811.34

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Solution

The fourth proportional to 77,407.08, 116,373.08 and 61,811.34 is: 92,926.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,407.08 : 116,373.08 = 61,811.34 : x
  2. Step 2: Convert to fraction form
    77,407.08/116,373.08 = 61,811.34/x
  3. Step 3: Cross multiply
    77,407.08x = 116,373.08 × 61,811.34
  4. Step 4: Simplify right side
    77,407.08x = 7,193,176,014.73
  5. Step 5: Solve for x
    x = 7,193,176,014.73/77,407.08
  6. Step 6: Final answer
    x = 92,926.59

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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.