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Finding the Fourth Proportional to 170,297.64, 234,974.80 and 98,673.32

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Solution

The fourth proportional to 170,297.64, 234,974.80 and 98,673.32 is: 136,148.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,297.64 : 234,974.80 = 98,673.32 : x
  2. Step 2: Convert to fraction form
    170,297.64/234,974.80 = 98,673.32/x
  3. Step 3: Cross multiply
    170,297.64x = 234,974.80 × 98,673.32
  4. Step 4: Simplify right side
    170,297.64x = 23,185,743,632.34
  5. Step 5: Solve for x
    x = 23,185,743,632.34/170,297.64
  6. Step 6: Final answer
    x = 136,148.36

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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.