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Finding the Fourth Proportional to 192,429.90, 288,207.45 and 98,826.30

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Solution

The fourth proportional to 192,429.90, 288,207.45 and 98,826.30 is: 148,014.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,429.90 : 288,207.45 = 98,826.30 : x
  2. Step 2: Convert to fraction form
    192,429.90/288,207.45 = 98,826.30/x
  3. Step 3: Cross multiply
    192,429.90x = 288,207.45 × 98,826.30
  4. Step 4: Simplify right side
    192,429.90x = 28,482,475,915.94
  5. Step 5: Solve for x
    x = 28,482,475,915.94/192,429.90
  6. Step 6: Final answer
    x = 148,014.81

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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.