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Finding the Fourth Proportional to 171,643.80, 257,514.30 and 53,327.10

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Solution

The fourth proportional to 171,643.80, 257,514.30 and 53,327.10 is: 80,005.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,643.80 : 257,514.30 = 53,327.10 : x
  2. Step 2: Convert to fraction form
    171,643.80/257,514.30 = 53,327.10/x
  3. Step 3: Cross multiply
    171,643.80x = 257,514.30 × 53,327.10
  4. Step 4: Simplify right side
    171,643.80x = 13,732,490,827.53
  5. Step 5: Solve for x
    x = 13,732,490,827.53/171,643.80
  6. Step 6: Final answer
    x = 80,005.75

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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.