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Finding the Fourth Proportional to 230,657.40, 345,986.10 and 171,608.40

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Solution

The fourth proportional to 230,657.40, 345,986.10 and 171,608.40 is: 257,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,657.40 : 345,986.10 = 171,608.40 : x
  2. Step 2: Convert to fraction form
    230,657.40/345,986.10 = 171,608.40/x
  3. Step 3: Cross multiply
    230,657.40x = 345,986.10 × 171,608.40
  4. Step 4: Simplify right side
    230,657.40x = 59,374,121,043.24
  5. Step 5: Solve for x
    x = 59,374,121,043.24/230,657.40
  6. Step 6: Final answer
    x = 257,412.60

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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.