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Finding the Fourth Proportional to 101,981.25, 152,862.53 and 49,274.55

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Solution

The fourth proportional to 101,981.25, 152,862.53 and 49,274.55 is: 73,858.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,981.25 : 152,862.53 = 49,274.55 : x
  2. Step 2: Convert to fraction form
    101,981.25/152,862.53 = 49,274.55/x
  3. Step 3: Cross multiply
    101,981.25x = 152,862.53 × 49,274.55
  4. Step 4: Simplify right side
    101,981.25x = 7,532,232,131.24
  5. Step 5: Solve for x
    x = 7,532,232,131.24/101,981.25
  6. Step 6: Final answer
    x = 73,858.99

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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.