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Finding the Fourth Proportional to 217,445.40, 325,860.90 and 160,843.80

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Solution

The fourth proportional to 217,445.40, 325,860.90 and 160,843.80 is: 241,038.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,445.40 : 325,860.90 = 160,843.80 : x
  2. Step 2: Convert to fraction form
    217,445.40/325,860.90 = 160,843.80/x
  3. Step 3: Cross multiply
    217,445.40x = 325,860.90 × 160,843.80
  4. Step 4: Simplify right side
    217,445.40x = 52,412,705,427.42
  5. Step 5: Solve for x
    x = 52,412,705,427.42/217,445.40
  6. Step 6: Final answer
    x = 241,038.46

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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.