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Finding the Fourth Proportional to 122,281.30, 170,843.90 and 122,281.30

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Solution

The fourth proportional to 122,281.30, 170,843.90 and 122,281.30 is: 170,843.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,281.30 : 170,843.90 = 122,281.30 : x
  2. Step 2: Convert to fraction form
    122,281.30/170,843.90 = 122,281.30/x
  3. Step 3: Cross multiply
    122,281.30x = 170,843.90 × 122,281.30
  4. Step 4: Simplify right side
    122,281.30x = 20,891,014,189.07
  5. Step 5: Solve for x
    x = 20,891,014,189.07/122,281.30
  6. Step 6: Final answer
    x = 170,843.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.