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Finding the Fourth Proportional to 161,659.68, 223,084.58 and 90,035.84

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Solution

The fourth proportional to 161,659.68, 223,084.58 and 90,035.84 is: 124,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659.68 : 223,084.58 = 90,035.84 : x
  2. Step 2: Convert to fraction form
    161,659.68/223,084.58 = 90,035.84/x
  3. Step 3: Cross multiply
    161,659.68x = 223,084.58 × 90,035.84
  4. Step 4: Simplify right side
    161,659.68x = 20,085,605,985.75
  5. Step 5: Solve for x
    x = 20,085,605,985.75/161,659.68
  6. Step 6: Final answer
    x = 124,246.23

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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.