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Finding the Fourth Proportional to 202,154.76, 279,063.23 and 130,569.69

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Solution

The fourth proportional to 202,154.76, 279,063.23 and 130,569.69 is: 180,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,154.76 : 279,063.23 = 130,569.69 : x
  2. Step 2: Convert to fraction form
    202,154.76/279,063.23 = 130,569.69/x
  3. Step 3: Cross multiply
    202,154.76x = 279,063.23 × 130,569.69
  4. Step 4: Simplify right side
    202,154.76x = 36,437,199,431.50
  5. Step 5: Solve for x
    x = 36,437,199,431.50/202,154.76
  6. Step 6: Final answer
    x = 180,244.09

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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.