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Finding the Fourth Proportional to 404,574.15, 606,959.80 and 134,701.80

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Solution

The fourth proportional to 404,574.15, 606,959.80 and 134,701.80 is: 202,085.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,574.15 : 606,959.80 = 134,701.80 : x
  2. Step 2: Convert to fraction form
    404,574.15/606,959.80 = 134,701.80/x
  3. Step 3: Cross multiply
    404,574.15x = 606,959.80 × 134,701.80
  4. Step 4: Simplify right side
    404,574.15x = 81,758,574,974.79
  5. Step 5: Solve for x
    x = 81,758,574,974.79/404,574.15
  6. Step 6: Final answer
    x = 202,085.51

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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.