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Finding the Fourth Proportional to 202,355.52, 279,196.32 and 130,709.44

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Solution

The fourth proportional to 202,355.52, 279,196.32 and 130,709.44 is: 180,343.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,355.52 : 279,196.32 = 130,709.44 : x
  2. Step 2: Convert to fraction form
    202,355.52/279,196.32 = 130,709.44/x
  3. Step 3: Cross multiply
    202,355.52x = 279,196.32 × 130,709.44
  4. Step 4: Simplify right side
    202,355.52x = 36,493,594,637.26
  5. Step 5: Solve for x
    x = 36,493,594,637.26/202,355.52
  6. Step 6: Final answer
    x = 180,343.95

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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.