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Finding the Fourth Proportional to 186,791, 280,122.08 and 60,398.86

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Solution

The fourth proportional to 186,791, 280,122.08 and 60,398.86 is: 90,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,791 : 280,122.08 = 60,398.86 : x
  2. Step 2: Convert to fraction form
    186,791/280,122.08 = 60,398.86/x
  3. Step 3: Cross multiply
    186,791x = 280,122.08 × 60,398.86
  4. Step 4: Simplify right side
    186,791x = 16,919,054,292.83
  5. Step 5: Solve for x
    x = 16,919,054,292.83/186,791
  6. Step 6: Final answer
    x = 90,577.46

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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.