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Finding the Fourth Proportional to 118,878.99, 164,069.78 and 73,571.56

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Solution

The fourth proportional to 118,878.99, 164,069.78 and 73,571.56 is: 101,539.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,878.99 : 164,069.78 = 73,571.56 : x
  2. Step 2: Convert to fraction form
    118,878.99/164,069.78 = 73,571.56/x
  3. Step 3: Cross multiply
    118,878.99x = 164,069.78 × 73,571.56
  4. Step 4: Simplify right side
    118,878.99x = 12,070,869,437.21
  5. Step 5: Solve for x
    x = 12,070,869,437.21/118,878.99
  6. Step 6: Final answer
    x = 101,539.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.