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Finding the Fourth Proportional to 340,691.16, 511,136.53 and 100,811.13

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Solution

The fourth proportional to 340,691.16, 511,136.53 and 100,811.13 is: 151,246.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,691.16 : 511,136.53 = 100,811.13 : x
  2. Step 2: Convert to fraction form
    340,691.16/511,136.53 = 100,811.13/x
  3. Step 3: Cross multiply
    340,691.16x = 511,136.53 × 100,811.13
  4. Step 4: Simplify right side
    340,691.16x = 51,528,251,879.93
  5. Step 5: Solve for x
    x = 51,528,251,879.93/340,691.16
  6. Step 6: Final answer
    x = 151,246.22

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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.