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Finding the Fourth Proportional to 98,603.54, 136,072.89 and 53,891.54

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Solution

The fourth proportional to 98,603.54, 136,072.89 and 53,891.54 is: 74,370.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,603.54 : 136,072.89 = 53,891.54 : x
  2. Step 2: Convert to fraction form
    98,603.54/136,072.89 = 53,891.54/x
  3. Step 3: Cross multiply
    98,603.54x = 136,072.89 × 53,891.54
  4. Step 4: Simplify right side
    98,603.54x = 7,333,177,594.35
  5. Step 5: Solve for x
    x = 7,333,177,594.35/98,603.54
  6. Step 6: Final answer
    x = 74,370.33

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1.5x scale

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.