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Finding the Fourth Proportional to 161,399.52, 222,721.47 and 93,411.54

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Solution

The fourth proportional to 161,399.52, 222,721.47 and 93,411.54 is: 128,902.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,399.52 : 222,721.47 = 93,411.54 : x
  2. Step 2: Convert to fraction form
    161,399.52/222,721.47 = 93,411.54/x
  3. Step 3: Cross multiply
    161,399.52x = 222,721.47 × 93,411.54
  4. Step 4: Simplify right side
    161,399.52x = 20,804,755,503.76
  5. Step 5: Solve for x
    x = 20,804,755,503.76/161,399.52
  6. Step 6: Final answer
    x = 128,902.21

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1.5x scale

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.