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Finding the Fourth Proportional to 190,486.60, 262,874.70 and 104,443.80

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Solution

The fourth proportional to 190,486.60, 262,874.70 and 104,443.80 is: 144,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,486.60 : 262,874.70 = 104,443.80 : x
  2. Step 2: Convert to fraction form
    190,486.60/262,874.70 = 104,443.80/x
  3. Step 3: Cross multiply
    190,486.60x = 262,874.70 × 104,443.80
  4. Step 4: Simplify right side
    190,486.60x = 27,455,632,591.86
  5. Step 5: Solve for x
    x = 27,455,632,591.86/190,486.60
  6. Step 6: Final answer
    x = 144,134.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.