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Finding the Fourth Proportional to 207,103.83, 310,157.49 and 118,087.47

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Solution

The fourth proportional to 207,103.83, 310,157.49 and 118,087.47 is: 176,847.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,103.83 : 310,157.49 = 118,087.47 : x
  2. Step 2: Convert to fraction form
    207,103.83/310,157.49 = 118,087.47/x
  3. Step 3: Cross multiply
    207,103.83x = 310,157.49 × 118,087.47
  4. Step 4: Simplify right side
    207,103.83x = 36,625,713,295.65
  5. Step 5: Solve for x
    x = 36,625,713,295.65/207,103.83
  6. Step 6: Final answer
    x = 176,847.11

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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.