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Finding the Fourth Proportional to 161,656.75, 223,077.85 and 90,035.47

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Solution

The fourth proportional to 161,656.75, 223,077.85 and 90,035.47 is: 124,244.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,656.75 : 223,077.85 = 90,035.47 : x
  2. Step 2: Convert to fraction form
    161,656.75/223,077.85 = 90,035.47/x
  3. Step 3: Cross multiply
    161,656.75x = 223,077.85 × 90,035.47
  4. Step 4: Simplify right side
    161,656.75x = 20,084,919,741.58
  5. Step 5: Solve for x
    x = 20,084,919,741.58/161,656.75
  6. Step 6: Final answer
    x = 124,244.24

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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.