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Finding the Fourth Proportional to 404,704.80, 607,130.10 and 168,071.40

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Solution

The fourth proportional to 404,704.80, 607,130.10 and 168,071.40 is: 252,137.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,704.80 : 607,130.10 = 168,071.40 : x
  2. Step 2: Convert to fraction form
    404,704.80/607,130.10 = 168,071.40/x
  3. Step 3: Cross multiply
    404,704.80x = 607,130.10 × 168,071.40
  4. Step 4: Simplify right side
    404,704.80x = 102,041,205,889.14
  5. Step 5: Solve for x
    x = 102,041,205,889.14/404,704.80
  6. Step 6: Final answer
    x = 252,137.37

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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.