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Finding the Fourth Proportional to 136,468.40, 204,731.40 and 41,690.80

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Solution

The fourth proportional to 136,468.40, 204,731.40 and 41,690.80 is: 62,545.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,468.40 : 204,731.40 = 41,690.80 : x
  2. Step 2: Convert to fraction form
    136,468.40/204,731.40 = 41,690.80/x
  3. Step 3: Cross multiply
    136,468.40x = 204,731.40 × 41,690.80
  4. Step 4: Simplify right side
    136,468.40x = 8,535,415,851.12
  5. Step 5: Solve for x
    x = 8,535,415,851.12/136,468.40
  6. Step 6: Final answer
    x = 62,545.00

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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.