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Finding the Fourth Proportional to 342,910.11, 473,199.51 and 189,937.98

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Solution

The fourth proportional to 342,910.11, 473,199.51 and 189,937.98 is: 262,105.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,910.11 : 473,199.51 = 189,937.98 : x
  2. Step 2: Convert to fraction form
    342,910.11/473,199.51 = 189,937.98/x
  3. Step 3: Cross multiply
    342,910.11x = 473,199.51 × 189,937.98
  4. Step 4: Simplify right side
    342,910.11x = 89,878,559,066.39
  5. Step 5: Solve for x
    x = 89,878,559,066.39/342,910.11
  6. Step 6: Final answer
    x = 262,105.31

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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.