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Finding the Fourth Proportional to 184,068.60, 276,102.90 and 128,081.40

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Solution

The fourth proportional to 184,068.60, 276,102.90 and 128,081.40 is: 192,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    184,068.60 : 276,102.90 = 128,081.40 : x
  2. Step 2: Convert to fraction form
    184,068.60/276,102.90 = 128,081.40/x
  3. Step 3: Cross multiply
    184,068.60x = 276,102.90 × 128,081.40
  4. Step 4: Simplify right side
    184,068.60x = 35,363,645,976.06
  5. Step 5: Solve for x
    x = 35,363,645,976.06/184,068.60
  6. Step 6: Final answer
    x = 192,122.10

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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.