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Finding the Fourth Proportional to 186,426.94, 279,119.28 and 100,730.77

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Solution

The fourth proportional to 186,426.94, 279,119.28 and 100,730.77 is: 150,814.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,426.94 : 279,119.28 = 100,730.77 : x
  2. Step 2: Convert to fraction form
    186,426.94/279,119.28 = 100,730.77/x
  3. Step 3: Cross multiply
    186,426.94x = 279,119.28 × 100,730.77
  4. Step 4: Simplify right side
    186,426.94x = 28,115,899,996.25
  5. Step 5: Solve for x
    x = 28,115,899,996.25/186,426.94
  6. Step 6: Final answer
    x = 150,814.58

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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.