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Finding the Fourth Proportional to 357,770.42, 536,650.15 and 91,528.68

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Solution

The fourth proportional to 357,770.42, 536,650.15 and 91,528.68 is: 137,291.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,770.42 : 536,650.15 = 91,528.68 : x
  2. Step 2: Convert to fraction form
    357,770.42/536,650.15 = 91,528.68/x
  3. Step 3: Cross multiply
    357,770.42x = 536,650.15 × 91,528.68
  4. Step 4: Simplify right side
    357,770.42x = 49,118,879,851.30
  5. Step 5: Solve for x
    x = 49,118,879,851.30/357,770.42
  6. Step 6: Final answer
    x = 137,291.62

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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.