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Finding the Fourth Proportional to 73,106.79, 109,410.66 and 61,273.91

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Solution

The fourth proportional to 73,106.79, 109,410.66 and 61,273.91 is: 91,701.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,106.79 : 109,410.66 = 61,273.91 : x
  2. Step 2: Convert to fraction form
    73,106.79/109,410.66 = 61,273.91/x
  3. Step 3: Cross multiply
    73,106.79x = 109,410.66 × 61,273.91
  4. Step 4: Simplify right side
    73,106.79x = 6,704,019,207.41
  5. Step 5: Solve for x
    x = 6,704,019,207.41/73,106.79
  6. Step 6: Final answer
    x = 91,701.74

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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.