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Finding the Fourth Proportional to 342,571.48, 513,729.42 and 117,868.36

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Solution

The fourth proportional to 342,571.48, 513,729.42 and 117,868.36 is: 176,758.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,571.48 : 513,729.42 = 117,868.36 : x
  2. Step 2: Convert to fraction form
    342,571.48/513,729.42 = 117,868.36/x
  3. Step 3: Cross multiply
    342,571.48x = 513,729.42 × 117,868.36
  4. Step 4: Simplify right side
    342,571.48x = 60,552,444,219.15
  5. Step 5: Solve for x
    x = 60,552,444,219.15/342,571.48
  6. Step 6: Final answer
    x = 176,758.57

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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.