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Finding the Fourth Proportional to 186,693.98, 280,072.08 and 60,319.31

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Solution

The fourth proportional to 186,693.98, 280,072.08 and 60,319.31 is: 90,489.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,693.98 : 280,072.08 = 60,319.31 : x
  2. Step 2: Convert to fraction form
    186,693.98/280,072.08 = 60,319.31/x
  3. Step 3: Cross multiply
    186,693.98x = 280,072.08 × 60,319.31
  4. Step 4: Simplify right side
    186,693.98x = 16,893,753,215.50
  5. Step 5: Solve for x
    x = 16,893,753,215.50/186,693.98
  6. Step 6: Final answer
    x = 90,489.01

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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.