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Finding the Fourth Proportional to 404,702.80, 607,127.10 and 168,069.40

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Solution

The fourth proportional to 404,702.80, 607,127.10 and 168,069.40 is: 252,134.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,702.80 : 607,127.10 = 168,069.40 : x
  2. Step 2: Convert to fraction form
    404,702.80/607,127.10 = 168,069.40/x
  3. Step 3: Cross multiply
    404,702.80x = 607,127.10 × 168,069.40
  4. Step 4: Simplify right side
    404,702.80x = 102,039,487,420.74
  5. Step 5: Solve for x
    x = 102,039,487,420.74/404,702.80
  6. Step 6: Final answer
    x = 252,134.37

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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.