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Finding the Fourth Proportional to 355,781.72, 533,672.58 and 168,691.16

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Solution

The fourth proportional to 355,781.72, 533,672.58 and 168,691.16 is: 253,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,781.72 : 533,672.58 = 168,691.16 : x
  2. Step 2: Convert to fraction form
    355,781.72/533,672.58 = 168,691.16/x
  3. Step 3: Cross multiply
    355,781.72x = 533,672.58 × 168,691.16
  4. Step 4: Simplify right side
    355,781.72x = 90,025,846,580.39
  5. Step 5: Solve for x
    x = 90,025,846,580.39/355,781.72
  6. Step 6: Final answer
    x = 253,036.74

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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.