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Finding the Fourth Proportional to 171,995.40, 257,774.40 and 153,187.20

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Solution

The fourth proportional to 171,995.40, 257,774.40 and 153,187.20 is: 229,586.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,995.40 : 257,774.40 = 153,187.20 : x
  2. Step 2: Convert to fraction form
    171,995.40/257,774.40 = 153,187.20/x
  3. Step 3: Cross multiply
    171,995.40x = 257,774.40 × 153,187.20
  4. Step 4: Simplify right side
    171,995.40x = 39,487,738,567.68
  5. Step 5: Solve for x
    x = 39,487,738,567.68/171,995.40
  6. Step 6: Final answer
    x = 229,586.02

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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.