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Finding the Fourth Proportional to 315,418.60, 473,134.54 and 113,027.89

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Solution

The fourth proportional to 315,418.60, 473,134.54 and 113,027.89 is: 169,544.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,418.60 : 473,134.54 = 113,027.89 : x
  2. Step 2: Convert to fraction form
    315,418.60/473,134.54 = 113,027.89/x
  3. Step 3: Cross multiply
    315,418.60x = 473,134.54 × 113,027.89
  4. Step 4: Simplify right side
    315,418.60x = 53,477,398,742.32
  5. Step 5: Solve for x
    x = 53,477,398,742.32/315,418.60
  6. Step 6: Final answer
    x = 169,544.21

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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.