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Finding the Fourth Proportional to 169,993,442.80, 254,990,164.20 and 54,989,610.40

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Solution

The fourth proportional to 169,993,442.80, 254,990,164.20 and 54,989,610.40 is: 82,484,415.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,993,442.80 : 254,990,164.20 = 54,989,610.40 : x
  2. Step 2: Convert to fraction form
    169,993,442.80/254,990,164.20 = 54,989,610.40/x
  3. Step 3: Cross multiply
    169,993,442.80x = 254,990,164.20 × 54,989,610.40
  4. Step 4: Simplify right side
    169,993,442.80x = 14,021,809,785,190,026
  5. Step 5: Solve for x
    x = 14,021,809,785,190,026/169,993,442.80
  6. Step 6: Final answer
    x = 82,484,415.60

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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.