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Finding the Fourth Proportional to 220,666.61, 303,564.27 and 193,319.53

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Solution

The fourth proportional to 220,666.61, 303,564.27 and 193,319.53 is: 265,943.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,666.61 : 303,564.27 = 193,319.53 : x
  2. Step 2: Convert to fraction form
    220,666.61/303,564.27 = 193,319.53/x
  3. Step 3: Cross multiply
    220,666.61x = 303,564.27 × 193,319.53
  4. Step 4: Simplify right side
    220,666.61x = 58,684,901,967.23
  5. Step 5: Solve for x
    x = 58,684,901,967.23/220,666.61
  6. Step 6: Final answer
    x = 265,943.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.