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Finding the Fourth Proportional to 169,989,825.80, 255,089,714.70 and 67,743,201.80

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Solution

The fourth proportional to 169,989,825.80, 255,089,714.70 and 67,743,201.80 is: 101,656,637.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,989,825.80 : 255,089,714.70 = 67,743,201.80 : x
  2. Step 2: Convert to fraction form
    169,989,825.80/255,089,714.70 = 67,743,201.80/x
  3. Step 3: Cross multiply
    169,989,825.80x = 255,089,714.70 × 67,743,201.80
  4. Step 4: Simplify right side
    169,989,825.80x = 17,280,594,020,026,524
  5. Step 5: Solve for x
    x = 17,280,594,020,026,524/169,989,825.80
  6. Step 6: Final answer
    x = 101,656,637.03

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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.