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Finding the Fourth Proportional to 98,955, 136,558.38 and 59,211

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Solution

The fourth proportional to 98,955, 136,558.38 and 59,211 is: 81,711.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,955 : 136,558.38 = 59,211 : x
  2. Step 2: Convert to fraction form
    98,955/136,558.38 = 59,211/x
  3. Step 3: Cross multiply
    98,955x = 136,558.38 × 59,211
  4. Step 4: Simplify right side
    98,955x = 8,085,758,238.18
  5. Step 5: Solve for x
    x = 8,085,758,238.18/98,955
  6. Step 6: Final answer
    x = 81,711.47

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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.