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Finding the Fourth Proportional to 106,807.68, 160,239.87 and 31,928.04

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Solution

The fourth proportional to 106,807.68, 160,239.87 and 31,928.04 is: 47,900.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,807.68 : 160,239.87 = 31,928.04 : x
  2. Step 2: Convert to fraction form
    106,807.68/160,239.87 = 31,928.04/x
  3. Step 3: Cross multiply
    106,807.68x = 160,239.87 × 31,928.04
  4. Step 4: Simplify right side
    106,807.68x = 5,116,144,978.95
  5. Step 5: Solve for x
    x = 5,116,144,978.95/106,807.68
  6. Step 6: Final answer
    x = 47,900.53

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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.