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Finding the Fourth Proportional to 257,369.58, 354,726.45 and 171,174.42

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Solution

The fourth proportional to 257,369.58, 354,726.45 and 171,174.42 is: 235,925.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,369.58 : 354,726.45 = 171,174.42 : x
  2. Step 2: Convert to fraction form
    257,369.58/354,726.45 = 171,174.42/x
  3. Step 3: Cross multiply
    257,369.58x = 354,726.45 × 171,174.42
  4. Step 4: Simplify right side
    257,369.58x = 60,720,094,337.41
  5. Step 5: Solve for x
    x = 60,720,094,337.41/257,369.58
  6. Step 6: Final answer
    x = 235,925.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.