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Finding the Fourth Proportional to 183,715.20, 275,572.80 and 130,838.40

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Solution

The fourth proportional to 183,715.20, 275,572.80 and 130,838.40 is: 196,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,715.20 : 275,572.80 = 130,838.40 : x
  2. Step 2: Convert to fraction form
    183,715.20/275,572.80 = 130,838.40/x
  3. Step 3: Cross multiply
    183,715.20x = 275,572.80 × 130,838.40
  4. Step 4: Simplify right side
    183,715.20x = 36,055,504,235.52
  5. Step 5: Solve for x
    x = 36,055,504,235.52/183,715.20
  6. Step 6: Final answer
    x = 196,257.60

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1.5x scale

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.