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Finding the Fourth Proportional to 122,821.60, 184,232.40 and 108,306.40

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Solution

The fourth proportional to 122,821.60, 184,232.40 and 108,306.40 is: 162,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,821.60 : 184,232.40 = 108,306.40 : x
  2. Step 2: Convert to fraction form
    122,821.60/184,232.40 = 108,306.40/x
  3. Step 3: Cross multiply
    122,821.60x = 184,232.40 × 108,306.40
  4. Step 4: Simplify right side
    122,821.60x = 19,953,548,007.36
  5. Step 5: Solve for x
    x = 19,953,548,007.36/122,821.60
  6. Step 6: Final answer
    x = 162,459.60

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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.