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Finding the Fourth Proportional to 455,606.94, 683,401.17 and 118,640.13

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Solution

The fourth proportional to 455,606.94, 683,401.17 and 118,640.13 is: 177,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,606.94 : 683,401.17 = 118,640.13 : x
  2. Step 2: Convert to fraction form
    455,606.94/683,401.17 = 118,640.13/x
  3. Step 3: Cross multiply
    455,606.94x = 683,401.17 × 118,640.13
  4. Step 4: Simplify right side
    455,606.94x = 81,078,803,650.95
  5. Step 5: Solve for x
    x = 81,078,803,650.95/455,606.94
  6. Step 6: Final answer
    x = 177,957.79

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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.