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Finding the Fourth Proportional to 165,693.34, 228,659.34 and 90,241.84

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Solution

The fourth proportional to 165,693.34, 228,659.34 and 90,241.84 is: 124,535.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,693.34 : 228,659.34 = 90,241.84 : x
  2. Step 2: Convert to fraction form
    165,693.34/228,659.34 = 90,241.84/x
  3. Step 3: Cross multiply
    165,693.34x = 228,659.34 × 90,241.84
  4. Step 4: Simplify right side
    165,693.34x = 20,634,639,574.79
  5. Step 5: Solve for x
    x = 20,634,639,574.79/165,693.34
  6. Step 6: Final answer
    x = 124,535.12

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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.