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Finding the Fourth Proportional to 315,418.22, 473,133.98 and 113,027.51

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Solution

The fourth proportional to 315,418.22, 473,133.98 and 113,027.51 is: 169,543.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,418.22 : 473,133.98 = 113,027.51 : x
  2. Step 2: Convert to fraction form
    315,418.22/473,133.98 = 113,027.51/x
  3. Step 3: Cross multiply
    315,418.22x = 473,133.98 × 113,027.51
  4. Step 4: Simplify right side
    315,418.22x = 53,477,155,655.79
  5. Step 5: Solve for x
    x = 53,477,155,655.79/315,418.22
  6. Step 6: Final answer
    x = 169,543.65

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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.