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Finding the Fourth Proportional to 404,817.13, 607,435.84 and 165,106.90

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Solution

The fourth proportional to 404,817.13, 607,435.84 and 165,106.90 is: 247,746.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,817.13 : 607,435.84 = 165,106.90 : x
  2. Step 2: Convert to fraction form
    404,817.13/607,435.84 = 165,106.90/x
  3. Step 3: Cross multiply
    404,817.13x = 607,435.84 × 165,106.90
  4. Step 4: Simplify right side
    404,817.13x = 100,291,848,491.30
  5. Step 5: Solve for x
    x = 100,291,848,491.30/404,817.13
  6. Step 6: Final answer
    x = 247,746.06

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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.