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Finding the Fourth Proportional to 235,040.94, 352,701.51 and 85,292.92

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Solution

The fourth proportional to 235,040.94, 352,701.51 and 85,292.92 is: 127,990.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,040.94 : 352,701.51 = 85,292.92 : x
  2. Step 2: Convert to fraction form
    235,040.94/352,701.51 = 85,292.92/x
  3. Step 3: Cross multiply
    235,040.94x = 352,701.51 × 85,292.92
  4. Step 4: Simplify right side
    235,040.94x = 30,082,939,486.34
  5. Step 5: Solve for x
    x = 30,082,939,486.34/235,040.94
  6. Step 6: Final answer
    x = 127,990.21

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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.