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Finding the Fourth Proportional to 368,440.92, 552,661.36 and 102,201.43

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Solution

The fourth proportional to 368,440.92, 552,661.36 and 102,201.43 is: 153,302.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,440.92 : 552,661.36 = 102,201.43 : x
  2. Step 2: Convert to fraction form
    368,440.92/552,661.36 = 102,201.43/x
  3. Step 3: Cross multiply
    368,440.92x = 552,661.36 × 102,201.43
  4. Step 4: Simplify right side
    368,440.92x = 56,482,781,297.74
  5. Step 5: Solve for x
    x = 56,482,781,297.74/368,440.92
  6. Step 6: Final answer
    x = 153,302.14

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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.