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Finding the Fourth Proportional to 171,191.80, 256,249.50 and 117,569.80

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Solution

The fourth proportional to 171,191.80, 256,249.50 and 117,569.80 is: 175,985.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,191.80 : 256,249.50 = 117,569.80 : x
  2. Step 2: Convert to fraction form
    171,191.80/256,249.50 = 117,569.80/x
  3. Step 3: Cross multiply
    171,191.80x = 256,249.50 × 117,569.80
  4. Step 4: Simplify right side
    171,191.80x = 30,127,202,465.10
  5. Step 5: Solve for x
    x = 30,127,202,465.10/171,191.80
  6. Step 6: Final answer
    x = 175,985.08

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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.