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Finding the Fourth Proportional to 118,230.66, 177,345.99 and 43,355.88

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Solution

The fourth proportional to 118,230.66, 177,345.99 and 43,355.88 is: 65,033.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,230.66 : 177,345.99 = 43,355.88 : x
  2. Step 2: Convert to fraction form
    118,230.66/177,345.99 = 43,355.88/x
  3. Step 3: Cross multiply
    118,230.66x = 177,345.99 × 43,355.88
  4. Step 4: Simplify right side
    118,230.66x = 7,688,992,066.87
  5. Step 5: Solve for x
    x = 7,688,992,066.87/118,230.66
  6. Step 6: Final answer
    x = 65,033.82

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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.