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Finding the Fourth Proportional to 484,136.40, 726,031.80 and 168,603.60

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Solution

The fourth proportional to 484,136.40, 726,031.80 and 168,603.60 is: 252,845.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,136.40 : 726,031.80 = 168,603.60 : x
  2. Step 2: Convert to fraction form
    484,136.40/726,031.80 = 168,603.60/x
  3. Step 3: Cross multiply
    484,136.40x = 726,031.80 × 168,603.60
  4. Step 4: Simplify right side
    484,136.40x = 122,411,575,194.48
  5. Step 5: Solve for x
    x = 122,411,575,194.48/484,136.40
  6. Step 6: Final answer
    x = 252,845.22

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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.