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Finding the Fourth Proportional to 171,750.20, 257,625.30 and 153,379.40

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Solution

The fourth proportional to 171,750.20, 257,625.30 and 153,379.40 is: 230,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,750.20 : 257,625.30 = 153,379.40 : x
  2. Step 2: Convert to fraction form
    171,750.20/257,625.30 = 153,379.40/x
  3. Step 3: Cross multiply
    171,750.20x = 257,625.30 × 153,379.40
  4. Step 4: Simplify right side
    171,750.20x = 39,514,413,938.82
  5. Step 5: Solve for x
    x = 39,514,413,938.82/171,750.20
  6. Step 6: Final answer
    x = 230,069.10

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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.