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Finding the Fourth Proportional to 104,864.48, 157,185.96 and 75,266.28

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Solution

The fourth proportional to 104,864.48, 157,185.96 and 75,266.28 is: 112,819.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,864.48 : 157,185.96 = 75,266.28 : x
  2. Step 2: Convert to fraction form
    104,864.48/157,185.96 = 75,266.28/x
  3. Step 3: Cross multiply
    104,864.48x = 157,185.96 × 75,266.28
  4. Step 4: Simplify right side
    104,864.48x = 11,830,802,477.43
  5. Step 5: Solve for x
    x = 11,830,802,477.43/104,864.48
  6. Step 6: Final answer
    x = 112,819.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.