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Finding the Fourth Proportional to 342,041.45, 513,072.59 and 117,398.66

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Solution

The fourth proportional to 342,041.45, 513,072.59 and 117,398.66 is: 176,101.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,041.45 : 513,072.59 = 117,398.66 : x
  2. Step 2: Convert to fraction form
    342,041.45/513,072.59 = 117,398.66/x
  3. Step 3: Cross multiply
    342,041.45x = 513,072.59 × 117,398.66
  4. Step 4: Simplify right side
    342,041.45x = 60,234,031,396.37
  5. Step 5: Solve for x
    x = 60,234,031,396.37/342,041.45
  6. Step 6: Final answer
    x = 176,101.56

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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.