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Finding the Fourth Proportional to 161,433.76, 222,685.81 and 100,899.34

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Solution

The fourth proportional to 161,433.76, 222,685.81 and 100,899.34 is: 139,183.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,433.76 : 222,685.81 = 100,899.34 : x
  2. Step 2: Convert to fraction form
    161,433.76/222,685.81 = 100,899.34/x
  3. Step 3: Cross multiply
    161,433.76x = 222,685.81 × 100,899.34
  4. Step 4: Simplify right side
    161,433.76x = 22,468,851,256.37
  5. Step 5: Solve for x
    x = 22,468,851,256.37/161,433.76
  6. Step 6: Final answer
    x = 139,183.10

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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.