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Finding the Fourth Proportional to 161,647.58, 223,080.55 and 90,027.60

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Solution

The fourth proportional to 161,647.58, 223,080.55 and 90,027.60 is: 124,241.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,647.58 : 223,080.55 = 90,027.60 : x
  2. Step 2: Convert to fraction form
    161,647.58/223,080.55 = 90,027.60/x
  3. Step 3: Cross multiply
    161,647.58x = 223,080.55 × 90,027.60
  4. Step 4: Simplify right side
    161,647.58x = 20,083,406,200.45
  5. Step 5: Solve for x
    x = 20,083,406,200.45/161,647.58
  6. Step 6: Final answer
    x = 124,241.93

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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.