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Finding the Fourth Proportional to 73,109.70, 109,794.15 and 56,510.10

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Solution

The fourth proportional to 73,109.70, 109,794.15 and 56,510.10 is: 84,865.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,109.70 : 109,794.15 = 56,510.10 : x
  2. Step 2: Convert to fraction form
    73,109.70/109,794.15 = 56,510.10/x
  3. Step 3: Cross multiply
    73,109.70x = 109,794.15 × 56,510.10
  4. Step 4: Simplify right side
    73,109.70x = 6,204,478,395.92
  5. Step 5: Solve for x
    x = 6,204,478,395.92/73,109.70
  6. Step 6: Final answer
    x = 84,865.32

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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.