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Finding the Fourth Proportional to 186,895.69, 280,340.89 and 87,000.01

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Solution

The fourth proportional to 186,895.69, 280,340.89 and 87,000.01 is: 130,498.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,895.69 : 280,340.89 = 87,000.01 : x
  2. Step 2: Convert to fraction form
    186,895.69/280,340.89 = 87,000.01/x
  3. Step 3: Cross multiply
    186,895.69x = 280,340.89 × 87,000.01
  4. Step 4: Simplify right side
    186,895.69x = 24,389,659,315.06
  5. Step 5: Solve for x
    x = 24,389,659,315.06/186,895.69
  6. Step 6: Final answer
    x = 130,498.78

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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.