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Finding the Fourth Proportional to 368,139.22, 552,209.60 and 101,900.51

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Solution

The fourth proportional to 368,139.22, 552,209.60 and 101,900.51 is: 152,850.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,139.22 : 552,209.60 = 101,900.51 : x
  2. Step 2: Convert to fraction form
    368,139.22/552,209.60 = 101,900.51/x
  3. Step 3: Cross multiply
    368,139.22x = 552,209.60 × 101,900.51
  4. Step 4: Simplify right side
    368,139.22x = 56,270,439,866.90
  5. Step 5: Solve for x
    x = 56,270,439,866.90/368,139.22
  6. Step 6: Final answer
    x = 152,850.98

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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.