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Finding the Fourth Proportional to 122,836.60, 184,254.90 and 39,730.60

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Solution

The fourth proportional to 122,836.60, 184,254.90 and 39,730.60 is: 59,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,836.60 : 184,254.90 = 39,730.60 : x
  2. Step 2: Convert to fraction form
    122,836.60/184,254.90 = 39,730.60/x
  3. Step 3: Cross multiply
    122,836.60x = 184,254.90 × 39,730.60
  4. Step 4: Simplify right side
    122,836.60x = 7,320,557,729.94
  5. Step 5: Solve for x
    x = 7,320,557,729.94/122,836.60
  6. Step 6: Final answer
    x = 59,595.90

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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.