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Finding the Fourth Proportional to 171,703.20, 257,554.80 and 159,261.60

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Solution

The fourth proportional to 171,703.20, 257,554.80 and 159,261.60 is: 238,892.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,703.20 : 257,554.80 = 159,261.60 : x
  2. Step 2: Convert to fraction form
    171,703.20/257,554.80 = 159,261.60/x
  3. Step 3: Cross multiply
    171,703.20x = 257,554.80 × 159,261.60
  4. Step 4: Simplify right side
    171,703.20x = 41,018,589,535.68
  5. Step 5: Solve for x
    x = 41,018,589,535.68/171,703.20
  6. Step 6: Final answer
    x = 238,892.40

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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.