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Finding the Fourth Proportional to 259,148.57, 388,775.70 and 146,878.92

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Solution

The fourth proportional to 259,148.57, 388,775.70 and 146,878.92 is: 220,348.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,148.57 : 388,775.70 = 146,878.92 : x
  2. Step 2: Convert to fraction form
    259,148.57/388,775.70 = 146,878.92/x
  3. Step 3: Cross multiply
    259,148.57x = 388,775.70 × 146,878.92
  4. Step 4: Simplify right side
    259,148.57x = 57,102,954,938.24
  5. Step 5: Solve for x
    x = 57,102,954,938.24/259,148.57
  6. Step 6: Final answer
    x = 220,348.34

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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.