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Finding the Fourth Proportional to 266,568.60, 399,269.70 and 237,019.80

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Solution

The fourth proportional to 266,568.60, 399,269.70 and 237,019.80 is: 355,011.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,568.60 : 399,269.70 = 237,019.80 : x
  2. Step 2: Convert to fraction form
    266,568.60/399,269.70 = 237,019.80/x
  3. Step 3: Cross multiply
    266,568.60x = 399,269.70 × 237,019.80
  4. Step 4: Simplify right side
    266,568.60x = 94,634,824,440.06
  5. Step 5: Solve for x
    x = 94,634,824,440.06/266,568.60
  6. Step 6: Final answer
    x = 355,011.15

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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.