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Finding the Fourth Proportional to 192,003.80, 287,775.30 and 98,461.40

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Solution

The fourth proportional to 192,003.80, 287,775.30 and 98,461.40 is: 147,573.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,003.80 : 287,775.30 = 98,461.40 : x
  2. Step 2: Convert to fraction form
    192,003.80/287,775.30 = 98,461.40/x
  3. Step 3: Cross multiply
    192,003.80x = 287,775.30 × 98,461.40
  4. Step 4: Simplify right side
    192,003.80x = 28,334,758,923.42
  5. Step 5: Solve for x
    x = 28,334,758,923.42/192,003.80
  6. Step 6: Final answer
    x = 147,573.95

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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.