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Finding the Fourth Proportional to 358,086.50, 537,129.88 and 91,847.02

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Solution

The fourth proportional to 358,086.50, 537,129.88 and 91,847.02 is: 137,770.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,086.50 : 537,129.88 = 91,847.02 : x
  2. Step 2: Convert to fraction form
    358,086.50/537,129.88 = 91,847.02/x
  3. Step 3: Cross multiply
    358,086.50x = 537,129.88 × 91,847.02
  4. Step 4: Simplify right side
    358,086.50x = 49,333,778,830.96
  5. Step 5: Solve for x
    x = 49,333,778,830.96/358,086.50
  6. Step 6: Final answer
    x = 137,770.56

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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.