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Finding the Fourth Proportional to 171,948.70, 257,923.05 and 154,452.70

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Solution

The fourth proportional to 171,948.70, 257,923.05 and 154,452.70 is: 231,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,948.70 : 257,923.05 = 154,452.70 : x
  2. Step 2: Convert to fraction form
    171,948.70/257,923.05 = 154,452.70/x
  3. Step 3: Cross multiply
    171,948.70x = 257,923.05 × 154,452.70
  4. Step 4: Simplify right side
    171,948.70x = 39,836,911,464.74
  5. Step 5: Solve for x
    x = 39,836,911,464.74/171,948.70
  6. Step 6: Final answer
    x = 231,679.05

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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.