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Finding the Fourth Proportional to 202,155.01, 279,063.58 and 130,569.94

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Solution

The fourth proportional to 202,155.01, 279,063.58 and 130,569.94 is: 180,244.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,155.01 : 279,063.58 = 130,569.94 : x
  2. Step 2: Convert to fraction form
    202,155.01/279,063.58 = 130,569.94/x
  3. Step 3: Cross multiply
    202,155.01x = 279,063.58 × 130,569.94
  4. Step 4: Simplify right side
    202,155.01x = 36,437,313,872.70
  5. Step 5: Solve for x
    x = 36,437,313,872.70/202,155.01
  6. Step 6: Final answer
    x = 180,244.43

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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.