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Finding the Fourth Proportional to 207,773.70, 286,772.32 and 131,244.11

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Solution

The fourth proportional to 207,773.70, 286,772.32 and 131,244.11 is: 181,145.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,773.70 : 286,772.32 = 131,244.11 : x
  2. Step 2: Convert to fraction form
    207,773.70/286,772.32 = 131,244.11/x
  3. Step 3: Cross multiply
    207,773.70x = 286,772.32 × 131,244.11
  4. Step 4: Simplify right side
    207,773.70x = 37,637,176,477.17
  5. Step 5: Solve for x
    x = 37,637,176,477.17/207,773.70
  6. Step 6: Final answer
    x = 181,145.05

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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.