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Finding the Fourth Proportional to 171,916.32, 257,874.56 and 53,597.20

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Solution

The fourth proportional to 171,916.32, 257,874.56 and 53,597.20 is: 80,395.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,916.32 : 257,874.56 = 53,597.20 : x
  2. Step 2: Convert to fraction form
    171,916.32/257,874.56 = 53,597.20/x
  3. Step 3: Cross multiply
    171,916.32x = 257,874.56 × 53,597.20
  4. Step 4: Simplify right side
    171,916.32x = 13,821,354,367.23
  5. Step 5: Solve for x
    x = 13,821,354,367.23/171,916.32
  6. Step 6: Final answer
    x = 80,395.82

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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.