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Finding the Fourth Proportional to 404,758.80, 607,211.10 and 168,125.40

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Solution

The fourth proportional to 404,758.80, 607,211.10 and 168,125.40 is: 252,218.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,758.80 : 607,211.10 = 168,125.40 : x
  2. Step 2: Convert to fraction form
    404,758.80/607,211.10 = 168,125.40/x
  3. Step 3: Cross multiply
    404,758.80x = 607,211.10 × 168,125.40
  4. Step 4: Simplify right side
    404,758.80x = 102,087,609,071.94
  5. Step 5: Solve for x
    x = 102,087,609,071.94/404,758.80
  6. Step 6: Final answer
    x = 252,218.38

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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.