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Finding the Fourth Proportional to 179,749, 248,053.62 and 100,261

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Solution

The fourth proportional to 179,749, 248,053.62 and 100,261 is: 138,360.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,749 : 248,053.62 = 100,261 : x
  2. Step 2: Convert to fraction form
    179,749/248,053.62 = 100,261/x
  3. Step 3: Cross multiply
    179,749x = 248,053.62 × 100,261
  4. Step 4: Simplify right side
    179,749x = 24,870,103,994.82
  5. Step 5: Solve for x
    x = 24,870,103,994.82/179,749
  6. Step 6: Final answer
    x = 138,360.18

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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.