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Finding the Fourth Proportional to 106,662.30, 159,763.05 and 88,230.30

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Solution

The fourth proportional to 106,662.30, 159,763.05 and 88,230.30 is: 132,154.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,662.30 : 159,763.05 = 88,230.30 : x
  2. Step 2: Convert to fraction form
    106,662.30/159,763.05 = 88,230.30/x
  3. Step 3: Cross multiply
    106,662.30x = 159,763.05 × 88,230.30
  4. Step 4: Simplify right side
    106,662.30x = 14,095,941,830.42
  5. Step 5: Solve for x
    x = 14,095,941,830.42/106,662.30
  6. Step 6: Final answer
    x = 132,154.86

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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.