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Finding the Fourth Proportional to 233,811.90, 350,748.90 and 75,987.18

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Solution

The fourth proportional to 233,811.90, 350,748.90 and 75,987.18 is: 113,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    233,811.90 : 350,748.90 = 75,987.18 : x
  2. Step 2: Convert to fraction form
    233,811.90/350,748.90 = 75,987.18/x
  3. Step 3: Cross multiply
    233,811.90x = 350,748.90 × 75,987.18
  4. Step 4: Simplify right side
    233,811.90x = 26,652,419,799.10
  5. Step 5: Solve for x
    x = 26,652,419,799.10/233,811.90
  6. Step 6: Final answer
    x = 113,990.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.