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Finding the Fourth Proportional to 122,440.80, 171,650.40 and 122,440.80

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Solution

The fourth proportional to 122,440.80, 171,650.40 and 122,440.80 is: 171,650.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,440.80 : 171,650.40 = 122,440.80 : x
  2. Step 2: Convert to fraction form
    122,440.80/171,650.40 = 122,440.80/x
  3. Step 3: Cross multiply
    122,440.80x = 171,650.40 × 122,440.80
  4. Step 4: Simplify right side
    122,440.80x = 21,017,012,296.32
  5. Step 5: Solve for x
    x = 21,017,012,296.32/122,440.80
  6. Step 6: Final answer
    x = 171,650.40

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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.