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Finding the Fourth Proportional to 235,040.69, 352,701.13 and 85,292.67

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Solution

The fourth proportional to 235,040.69, 352,701.13 and 85,292.67 is: 127,989.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,040.69 : 352,701.13 = 85,292.67 : x
  2. Step 2: Convert to fraction form
    235,040.69/352,701.13 = 85,292.67/x
  3. Step 3: Cross multiply
    235,040.69x = 352,701.13 × 85,292.67
  4. Step 4: Simplify right side
    235,040.69x = 30,082,821,089.72
  5. Step 5: Solve for x
    x = 30,082,821,089.72/235,040.69
  6. Step 6: Final answer
    x = 127,989.84

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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.