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Finding the Fourth Proportional to 306,079.91, 459,128.08 and 95,717.84

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Solution

The fourth proportional to 306,079.91, 459,128.08 and 95,717.84 is: 143,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,079.91 : 459,128.08 = 95,717.84 : x
  2. Step 2: Convert to fraction form
    306,079.91/459,128.08 = 95,717.84/x
  3. Step 3: Cross multiply
    306,079.91x = 459,128.08 × 95,717.84
  4. Step 4: Simplify right side
    306,079.91x = 43,946,748,100.95
  5. Step 5: Solve for x
    x = 43,946,748,100.95/306,079.91
  6. Step 6: Final answer
    x = 143,579.33

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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.