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Finding the Fourth Proportional to 235,554.80, 353,287.11 and 91,460.61

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Solution

The fourth proportional to 235,554.80, 353,287.11 and 91,460.61 is: 137,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,554.80 : 353,287.11 = 91,460.61 : x
  2. Step 2: Convert to fraction form
    235,554.80/353,287.11 = 91,460.61/x
  3. Step 3: Cross multiply
    235,554.80x = 353,287.11 × 91,460.61
  4. Step 4: Simplify right side
    235,554.80x = 32,311,854,585.74
  5. Step 5: Solve for x
    x = 32,311,854,585.74/235,554.80
  6. Step 6: Final answer
    x = 137,173.41

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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.