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Finding the Fourth Proportional to 98,924.84, 136,522.98 and 55,889.41

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Solution

The fourth proportional to 98,924.84, 136,522.98 and 55,889.41 is: 77,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,924.84 : 136,522.98 = 55,889.41 : x
  2. Step 2: Convert to fraction form
    98,924.84/136,522.98 = 55,889.41/x
  3. Step 3: Cross multiply
    98,924.84x = 136,522.98 × 55,889.41
  4. Step 4: Simplify right side
    98,924.84x = 7,630,188,462.33
  5. Step 5: Solve for x
    x = 7,630,188,462.33/98,924.84
  6. Step 6: Final answer
    x = 77,131.17

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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.