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Finding the Fourth Proportional to 122,961.60, 184,442.40 and 38,732.40

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Solution

The fourth proportional to 122,961.60, 184,442.40 and 38,732.40 is: 58,098.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,961.60 : 184,442.40 = 38,732.40 : x
  2. Step 2: Convert to fraction form
    122,961.60/184,442.40 = 38,732.40/x
  3. Step 3: Cross multiply
    122,961.60x = 184,442.40 × 38,732.40
  4. Step 4: Simplify right side
    122,961.60x = 7,143,896,813.76
  5. Step 5: Solve for x
    x = 7,143,896,813.76/122,961.60
  6. Step 6: Final answer
    x = 58,098.60

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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.