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Finding the Fourth Proportional to 404,688.99, 606,890.97 and 134,743.80

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Solution

The fourth proportional to 404,688.99, 606,890.97 and 134,743.80 is: 202,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,688.99 : 606,890.97 = 134,743.80 : x
  2. Step 2: Convert to fraction form
    404,688.99/606,890.97 = 134,743.80/x
  3. Step 3: Cross multiply
    404,688.99x = 606,890.97 × 134,743.80
  4. Step 4: Simplify right side
    404,688.99x = 81,774,795,483.49
  5. Step 5: Solve for x
    x = 81,774,795,483.49/404,688.99
  6. Step 6: Final answer
    x = 202,068.25

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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.