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Finding the Fourth Proportional to 192,428.90, 288,205.95 and 98,825.30

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Solution

The fourth proportional to 192,428.90, 288,205.95 and 98,825.30 is: 148,013.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,428.90 : 288,205.95 = 98,825.30 : x
  2. Step 2: Convert to fraction form
    192,428.90/288,205.95 = 98,825.30/x
  3. Step 3: Cross multiply
    192,428.90x = 288,205.95 × 98,825.30
  4. Step 4: Simplify right side
    192,428.90x = 28,482,039,470.54
  5. Step 5: Solve for x
    x = 28,482,039,470.54/192,428.90
  6. Step 6: Final answer
    x = 148,013.32

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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.