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Finding the Fourth Proportional to 357,484.59, 536,226.42 and 91,245.15

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Solution

The fourth proportional to 357,484.59, 536,226.42 and 91,245.15 is: 136,867.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,484.59 : 536,226.42 = 91,245.15 : x
  2. Step 2: Convert to fraction form
    357,484.59/536,226.42 = 91,245.15/x
  3. Step 3: Cross multiply
    357,484.59x = 536,226.42 × 91,245.15
  4. Step 4: Simplify right side
    357,484.59x = 48,928,060,126.86
  5. Step 5: Solve for x
    x = 48,928,060,126.86/357,484.59
  6. Step 6: Final answer
    x = 136,867.61

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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.