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Finding the Fourth Proportional to 317,989.45, 476,984.45 and 118,283.95

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Solution

The fourth proportional to 317,989.45, 476,984.45 and 118,283.95 is: 177,426.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,989.45 : 476,984.45 = 118,283.95 : x
  2. Step 2: Convert to fraction form
    317,989.45/476,984.45 = 118,283.95/x
  3. Step 3: Cross multiply
    317,989.45x = 476,984.45 × 118,283.95
  4. Step 4: Simplify right side
    317,989.45x = 56,419,604,834.58
  5. Step 5: Solve for x
    x = 56,419,604,834.58/317,989.45
  6. Step 6: Final answer
    x = 177,426.03

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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.