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Finding the Fourth Proportional to 171,344.80, 257,017.20 and 46,685.80

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Solution

The fourth proportional to 171,344.80, 257,017.20 and 46,685.80 is: 70,028.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,344.80 : 257,017.20 = 46,685.80 : x
  2. Step 2: Convert to fraction form
    171,344.80/257,017.20 = 46,685.80/x
  3. Step 3: Cross multiply
    171,344.80x = 257,017.20 × 46,685.80
  4. Step 4: Simplify right side
    171,344.80x = 11,999,053,595.76
  5. Step 5: Solve for x
    x = 11,999,053,595.76/171,344.80
  6. Step 6: Final answer
    x = 70,028.70

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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.