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Finding the Fourth Proportional to 186,437.76, 279,488.64 and 68,025.92

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Solution

The fourth proportional to 186,437.76, 279,488.64 and 68,025.92 is: 101,977.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,437.76 : 279,488.64 = 68,025.92 : x
  2. Step 2: Convert to fraction form
    186,437.76/279,488.64 = 68,025.92/x
  3. Step 3: Cross multiply
    186,437.76x = 279,488.64 × 68,025.92
  4. Step 4: Simplify right side
    186,437.76x = 19,012,471,865.55
  5. Step 5: Solve for x
    x = 19,012,471,865.55/186,437.76
  6. Step 6: Final answer
    x = 101,977.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.