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Finding the Fourth Proportional to 101,628.90, 151,825.26 and 65,798.34

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Solution

The fourth proportional to 101,628.90, 151,825.26 and 65,798.34 is: 98,297.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,628.90 : 151,825.26 = 65,798.34 : x
  2. Step 2: Convert to fraction form
    101,628.90/151,825.26 = 65,798.34/x
  3. Step 3: Cross multiply
    101,628.90x = 151,825.26 × 65,798.34
  4. Step 4: Simplify right side
    101,628.90x = 9,989,850,078.07
  5. Step 5: Solve for x
    x = 9,989,850,078.07/101,628.90
  6. Step 6: Final answer
    x = 98,297.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.