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Finding the Fourth Proportional to 118,215.70, 177,323.55 and 107,329.30

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Solution

The fourth proportional to 118,215.70, 177,323.55 and 107,329.30 is: 160,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,215.70 : 177,323.55 = 107,329.30 : x
  2. Step 2: Convert to fraction form
    118,215.70/177,323.55 = 107,329.30/x
  3. Step 3: Cross multiply
    118,215.70x = 177,323.55 × 107,329.30
  4. Step 4: Simplify right side
    118,215.70x = 19,032,012,495.02
  5. Step 5: Solve for x
    x = 19,032,012,495.02/118,215.70
  6. Step 6: Final answer
    x = 160,993.95

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1.5x scale

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.