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Finding the Fourth Proportional to 111,898.60, 168,042.30 and 59,410.60

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Solution

The fourth proportional to 111,898.60, 168,042.30 and 59,410.60 is: 89,219.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,898.60 : 168,042.30 = 59,410.60 : x
  2. Step 2: Convert to fraction form
    111,898.60/168,042.30 = 59,410.60/x
  3. Step 3: Cross multiply
    111,898.60x = 168,042.30 × 59,410.60
  4. Step 4: Simplify right side
    111,898.60x = 9,983,493,868.38
  5. Step 5: Solve for x
    x = 9,983,493,868.38/111,898.60
  6. Step 6: Final answer
    x = 89,219.11

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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.