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Finding the Fourth Proportional to 164,643.03, 227,211.84 and 93,021.53

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Solution

The fourth proportional to 164,643.03, 227,211.84 and 93,021.53 is: 128,372.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,643.03 : 227,211.84 = 93,021.53 : x
  2. Step 2: Convert to fraction form
    164,643.03/227,211.84 = 93,021.53/x
  3. Step 3: Cross multiply
    164,643.03x = 227,211.84 × 93,021.53
  4. Step 4: Simplify right side
    164,643.03x = 21,135,591,854.86
  5. Step 5: Solve for x
    x = 21,135,591,854.86/164,643.03
  6. Step 6: Final answer
    x = 128,372.22

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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.