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Finding the Fourth Proportional to 368,561.79, 552,845.73 and 102,343.03

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Solution

The fourth proportional to 368,561.79, 552,845.73 and 102,343.03 is: 153,515.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,561.79 : 552,845.73 = 102,343.03 : x
  2. Step 2: Convert to fraction form
    368,561.79/552,845.73 = 102,343.03/x
  3. Step 3: Cross multiply
    368,561.79x = 552,845.73 × 102,343.03
  4. Step 4: Simplify right side
    368,561.79x = 56,579,907,130.76
  5. Step 5: Solve for x
    x = 56,579,907,130.76/368,561.79
  6. Step 6: Final answer
    x = 153,515.39

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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.