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Finding the Fourth Proportional to 257,133.89, 354,903.80 and 171,096.44

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Solution

The fourth proportional to 257,133.89, 354,903.80 and 171,096.44 is: 236,152.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,133.89 : 354,903.80 = 171,096.44 : x
  2. Step 2: Convert to fraction form
    257,133.89/354,903.80 = 171,096.44/x
  3. Step 3: Cross multiply
    257,133.89x = 354,903.80 × 171,096.44
  4. Step 4: Simplify right side
    257,133.89x = 60,722,774,092.47
  5. Step 5: Solve for x
    x = 60,722,774,092.47/257,133.89
  6. Step 6: Final answer
    x = 236,152.35

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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.