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Finding the Fourth Proportional to 207,810.88, 286,773.27 and 117,166.05

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Solution

The fourth proportional to 207,810.88, 286,773.27 and 117,166.05 is: 161,685.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,810.88 : 286,773.27 = 117,166.05 : x
  2. Step 2: Convert to fraction form
    207,810.88/286,773.27 = 117,166.05/x
  3. Step 3: Cross multiply
    207,810.88x = 286,773.27 × 117,166.05
  4. Step 4: Simplify right side
    207,810.88x = 33,600,091,291.48
  5. Step 5: Solve for x
    x = 33,600,091,291.48/207,810.88
  6. Step 6: Final answer
    x = 161,685.91

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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.