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Finding the Fourth Proportional to 201,366.88, 301,392.90 and 148,044.78

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Solution

The fourth proportional to 201,366.88, 301,392.90 and 148,044.78 is: 221,583.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,366.88 : 301,392.90 = 148,044.78 : x
  2. Step 2: Convert to fraction form
    201,366.88/301,392.90 = 148,044.78/x
  3. Step 3: Cross multiply
    201,366.88x = 301,392.90 × 148,044.78
  4. Step 4: Simplify right side
    201,366.88x = 44,619,645,574.06
  5. Step 5: Solve for x
    x = 44,619,645,574.06/201,366.88
  6. Step 6: Final answer
    x = 221,583.84

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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.