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Finding the Fourth Proportional to 111,266.44, 153,547.78 and 60,965.44

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Solution

The fourth proportional to 111,266.44, 153,547.78 and 60,965.44 is: 84,132.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,266.44 : 153,547.78 = 60,965.44 : x
  2. Step 2: Convert to fraction form
    111,266.44/153,547.78 = 60,965.44/x
  3. Step 3: Cross multiply
    111,266.44x = 153,547.78 × 60,965.44
  4. Step 4: Simplify right side
    111,266.44x = 9,361,107,968.72
  5. Step 5: Solve for x
    x = 9,361,107,968.72/111,266.44
  6. Step 6: Final answer
    x = 84,132.36

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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.