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Finding the Fourth Proportional to 122,959.60, 184,439.40 and 115,572.40

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Solution

The fourth proportional to 122,959.60, 184,439.40 and 115,572.40 is: 173,358.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,959.60 : 184,439.40 = 115,572.40 : x
  2. Step 2: Convert to fraction form
    122,959.60/184,439.40 = 115,572.40/x
  3. Step 3: Cross multiply
    122,959.60x = 184,439.40 × 115,572.40
  4. Step 4: Simplify right side
    122,959.60x = 21,316,104,112.56
  5. Step 5: Solve for x
    x = 21,316,104,112.56/122,959.60
  6. Step 6: Final answer
    x = 173,358.60

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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.