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Finding the Fourth Proportional to 265,692,976.15, 366,729,243.08 and 154,219,729.74

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Solution

The fourth proportional to 265,692,976.15, 366,729,243.08 and 154,219,729.74 is: 212,865,562.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,692,976.15 : 366,729,243.08 = 154,219,729.74 : x
  2. Step 2: Convert to fraction form
    265,692,976.15/366,729,243.08 = 154,219,729.74/x
  3. Step 3: Cross multiply
    265,692,976.15x = 366,729,243.08 × 154,219,729.74
  4. Step 4: Simplify right side
    265,692,976.15x = 56,556,884,757,066,760
  5. Step 5: Solve for x
    x = 56,556,884,757,066,760/265,692,976.15
  6. Step 6: Final answer
    x = 212,865,562.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.