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Finding the Fourth Proportional to 306,059.40, 459,089.10 and 95,761.80

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Solution

The fourth proportional to 306,059.40, 459,089.10 and 95,761.80 is: 143,642.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,059.40 : 459,089.10 = 95,761.80 : x
  2. Step 2: Convert to fraction form
    306,059.40/459,089.10 = 95,761.80/x
  3. Step 3: Cross multiply
    306,059.40x = 459,089.10 × 95,761.80
  4. Step 4: Simplify right side
    306,059.40x = 43,963,198,576.38
  5. Step 5: Solve for x
    x = 43,963,198,576.38/306,059.40
  6. Step 6: Final answer
    x = 143,642.70

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1.5x scale

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.