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Finding the Fourth Proportional to 118,028.99, 162,880.04 and 64,314.02

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Solution

The fourth proportional to 118,028.99, 162,880.04 and 64,314.02 is: 88,753.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,028.99 : 162,880.04 = 64,314.02 : x
  2. Step 2: Convert to fraction form
    118,028.99/162,880.04 = 64,314.02/x
  3. Step 3: Cross multiply
    118,028.99x = 162,880.04 × 64,314.02
  4. Step 4: Simplify right side
    118,028.99x = 10,475,469,828.59
  5. Step 5: Solve for x
    x = 10,475,469,828.59/118,028.99
  6. Step 6: Final answer
    x = 88,753.36

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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.