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Finding the Fourth Proportional to 207,810.69, 286,773.01 and 117,165.87

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Solution

The fourth proportional to 207,810.69, 286,773.01 and 117,165.87 is: 161,685.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,810.69 : 286,773.01 = 117,165.87 : x
  2. Step 2: Convert to fraction form
    207,810.69/286,773.01 = 117,165.87/x
  3. Step 3: Cross multiply
    207,810.69x = 286,773.01 × 117,165.87
  4. Step 4: Simplify right side
    207,810.69x = 33,600,009,209.17
  5. Step 5: Solve for x
    x = 33,600,009,209.17/207,810.69
  6. Step 6: Final answer
    x = 161,685.66

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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.