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Finding the Fourth Proportional to 160,286.60, 240,138.30 and 130,543.40

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Solution

The fourth proportional to 160,286.60, 240,138.30 and 130,543.40 is: 195,577.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,286.60 : 240,138.30 = 130,543.40 : x
  2. Step 2: Convert to fraction form
    160,286.60/240,138.30 = 130,543.40/x
  3. Step 3: Cross multiply
    160,286.60x = 240,138.30 × 130,543.40
  4. Step 4: Simplify right side
    160,286.60x = 31,348,470,152.22
  5. Step 5: Solve for x
    x = 31,348,470,152.22/160,286.60
  6. Step 6: Final answer
    x = 195,577.61

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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.