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Finding the Fourth Proportional to 207,009, 285,669.88 and 116,380.08

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Solution

The fourth proportional to 207,009, 285,669.88 and 116,380.08 is: 160,603.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,009 : 285,669.88 = 116,380.08 : x
  2. Step 2: Convert to fraction form
    207,009/285,669.88 = 116,380.08/x
  3. Step 3: Cross multiply
    207,009x = 285,669.88 × 116,380.08
  4. Step 4: Simplify right side
    207,009x = 33,246,283,487.99
  5. Step 5: Solve for x
    x = 33,246,283,487.99/207,009
  6. Step 6: Final answer
    x = 160,603.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.