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Finding the Fourth Proportional to 666,187.79, 999,272.44 and 160,744.55

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Solution

The fourth proportional to 666,187.79, 999,272.44 and 160,744.55 is: 241,114.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,187.79 : 999,272.44 = 160,744.55 : x
  2. Step 2: Convert to fraction form
    666,187.79/999,272.44 = 160,744.55/x
  3. Step 3: Cross multiply
    666,187.79x = 999,272.44 × 160,744.55
  4. Step 4: Simplify right side
    666,187.79x = 160,627,592,895.12
  5. Step 5: Solve for x
    x = 160,627,592,895.12/666,187.79
  6. Step 6: Final answer
    x = 241,114.59

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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.