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Finding the Fourth Proportional to 161,281.97, 222,556.51 and 89,657.63

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Solution

The fourth proportional to 161,281.97, 222,556.51 and 89,657.63 is: 123,720.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,281.97 : 222,556.51 = 89,657.63 : x
  2. Step 2: Convert to fraction form
    161,281.97/222,556.51 = 89,657.63/x
  3. Step 3: Cross multiply
    161,281.97x = 222,556.51 × 89,657.63
  4. Step 4: Simplify right side
    161,281.97x = 19,953,889,730.01
  5. Step 5: Solve for x
    x = 19,953,889,730.01/161,281.97
  6. Step 6: Final answer
    x = 123,720.52

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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.