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Finding the Fourth Proportional to 207,398.88, 286,237.73 and 116,772.50

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Solution

The fourth proportional to 207,398.88, 286,237.73 and 116,772.50 is: 161,161.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,398.88 : 286,237.73 = 116,772.50 : x
  2. Step 2: Convert to fraction form
    207,398.88/286,237.73 = 116,772.50/x
  3. Step 3: Cross multiply
    207,398.88x = 286,237.73 × 116,772.50
  4. Step 4: Simplify right side
    207,398.88x = 33,424,696,333.95
  5. Step 5: Solve for x
    x = 33,424,696,333.95/207,398.88
  6. Step 6: Final answer
    x = 161,161.41

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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.