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Finding the Fourth Proportional to 118,499.66, 177,815.10 and 70,998.02

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Solution

The fourth proportional to 118,499.66, 177,815.10 and 70,998.02 is: 106,536.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,499.66 : 177,815.10 = 70,998.02 : x
  2. Step 2: Convert to fraction form
    118,499.66/177,815.10 = 70,998.02/x
  3. Step 3: Cross multiply
    118,499.66x = 177,815.10 × 70,998.02
  4. Step 4: Simplify right side
    118,499.66x = 12,624,520,026.10
  5. Step 5: Solve for x
    x = 12,624,520,026.10/118,499.66
  6. Step 6: Final answer
    x = 106,536.34

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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.