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Finding the Fourth Proportional to 112,389.50, 168,584.26 and 29,283.50

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Solution

The fourth proportional to 112,389.50, 168,584.26 and 29,283.50 is: 43,925.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,389.50 : 168,584.26 = 29,283.50 : x
  2. Step 2: Convert to fraction form
    112,389.50/168,584.26 = 29,283.50/x
  3. Step 3: Cross multiply
    112,389.50x = 168,584.26 × 29,283.50
  4. Step 4: Simplify right side
    112,389.50x = 4,936,737,177.71
  5. Step 5: Solve for x
    x = 4,936,737,177.71/112,389.50
  6. Step 6: Final answer
    x = 43,925.25

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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.