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Finding the Fourth Proportional to 216,617.52, 299,007.45 and 148,858.80

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Solution

The fourth proportional to 216,617.52, 299,007.45 and 148,858.80 is: 205,476.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,617.52 : 299,007.45 = 148,858.80 : x
  2. Step 2: Convert to fraction form
    216,617.52/299,007.45 = 148,858.80/x
  3. Step 3: Cross multiply
    216,617.52x = 299,007.45 × 148,858.80
  4. Step 4: Simplify right side
    216,617.52x = 44,509,890,198.06
  5. Step 5: Solve for x
    x = 44,509,890,198.06/216,617.52
  6. Step 6: Final answer
    x = 205,476.87

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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.