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Finding the Fourth Proportional to 306,216.60, 459,339.30 and 95,861.40

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Solution

The fourth proportional to 306,216.60, 459,339.30 and 95,861.40 is: 143,796.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,216.60 : 459,339.30 = 95,861.40 : x
  2. Step 2: Convert to fraction form
    306,216.60/459,339.30 = 95,861.40/x
  3. Step 3: Cross multiply
    306,216.60x = 459,339.30 × 95,861.40
  4. Step 4: Simplify right side
    306,216.60x = 44,032,908,373.02
  5. Step 5: Solve for x
    x = 44,032,908,373.02/306,216.60
  6. Step 6: Final answer
    x = 143,796.61

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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.