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Finding the Fourth Proportional to 207,366.16, 311,048.94 and 65,223.92

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Solution

The fourth proportional to 207,366.16, 311,048.94 and 65,223.92 is: 97,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,366.16 : 311,048.94 = 65,223.92 : x
  2. Step 2: Convert to fraction form
    207,366.16/311,048.94 = 65,223.92/x
  3. Step 3: Cross multiply
    207,366.16x = 311,048.94 × 65,223.92
  4. Step 4: Simplify right side
    207,366.16x = 20,287,831,178.64
  5. Step 5: Solve for x
    x = 20,287,831,178.64/207,366.16
  6. Step 6: Final answer
    x = 97,835.79

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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.