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Finding the Fourth Proportional to 358,290.60, 537,418.19 and 133,633.53

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Solution

The fourth proportional to 358,290.60, 537,418.19 and 133,633.53 is: 200,443.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,290.60 : 537,418.19 = 133,633.53 : x
  2. Step 2: Convert to fraction form
    358,290.60/537,418.19 = 133,633.53/x
  3. Step 3: Cross multiply
    358,290.60x = 537,418.19 × 133,633.53
  4. Step 4: Simplify right side
    358,290.60x = 71,817,089,815.91
  5. Step 5: Solve for x
    x = 71,817,089,815.91/358,290.60
  6. Step 6: Final answer
    x = 200,443.69

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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.