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Finding the Fourth Proportional to 183,956.40, 275,934.60 and 130,812.30

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Solution

The fourth proportional to 183,956.40, 275,934.60 and 130,812.30 is: 196,218.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,956.40 : 275,934.60 = 130,812.30 : x
  2. Step 2: Convert to fraction form
    183,956.40/275,934.60 = 130,812.30/x
  3. Step 3: Cross multiply
    183,956.40x = 275,934.60 × 130,812.30
  4. Step 4: Simplify right side
    183,956.40x = 36,095,639,675.58
  5. Step 5: Solve for x
    x = 36,095,639,675.58/183,956.40
  6. Step 6: Final answer
    x = 196,218.45

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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.