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Finding the Fourth Proportional to 161,518.74, 222,893.60 and 89,898.78

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Solution

The fourth proportional to 161,518.74, 222,893.60 and 89,898.78 is: 124,059.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,518.74 : 222,893.60 = 89,898.78 : x
  2. Step 2: Convert to fraction form
    161,518.74/222,893.60 = 89,898.78/x
  3. Step 3: Cross multiply
    161,518.74x = 222,893.60 × 89,898.78
  4. Step 4: Simplify right side
    161,518.74x = 20,037,862,709.81
  5. Step 5: Solve for x
    x = 20,037,862,709.81/161,518.74
  6. Step 6: Final answer
    x = 124,059.06

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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.