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Finding the Fourth Proportional to 147,851.80, 221,583.30 and 131,133.40

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Solution

The fourth proportional to 147,851.80, 221,583.30 and 131,133.40 is: 196,527.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,851.80 : 221,583.30 = 131,133.40 : x
  2. Step 2: Convert to fraction form
    147,851.80/221,583.30 = 131,133.40/x
  3. Step 3: Cross multiply
    147,851.80x = 221,583.30 × 131,133.40
  4. Step 4: Simplify right side
    147,851.80x = 29,056,971,512.22
  5. Step 5: Solve for x
    x = 29,056,971,512.22/147,851.80
  6. Step 6: Final answer
    x = 196,527.68

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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.