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Finding the Fourth Proportional to 169,993,432.80, 254,990,149.20 and 54,989,600.40

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Solution

The fourth proportional to 169,993,432.80, 254,990,149.20 and 54,989,600.40 is: 82,484,400.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,993,432.80 : 254,990,149.20 = 54,989,600.40 : x
  2. Step 2: Convert to fraction form
    169,993,432.80/254,990,149.20 = 54,989,600.40/x
  3. Step 3: Cross multiply
    169,993,432.80x = 254,990,149.20 × 54,989,600.40
  4. Step 4: Simplify right side
    169,993,432.80x = 14,021,806,410,444,378
  5. Step 5: Solve for x
    x = 14,021,806,410,444,378/169,993,432.80
  6. Step 6: Final answer
    x = 82,484,400.60

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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.