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Finding the Fourth Proportional to 122,589.60, 184,078.80 and 93,040.80

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Solution

The fourth proportional to 122,589.60, 184,078.80 and 93,040.80 is: 139,708.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,589.60 : 184,078.80 = 93,040.80 : x
  2. Step 2: Convert to fraction form
    122,589.60/184,078.80 = 93,040.80/x
  3. Step 3: Cross multiply
    122,589.60x = 184,078.80 × 93,040.80
  4. Step 4: Simplify right side
    122,589.60x = 17,126,838,815.04
  5. Step 5: Solve for x
    x = 17,126,838,815.04/122,589.60
  6. Step 6: Final answer
    x = 139,708.74

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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.