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Finding the Fourth Proportional to 369,208.46, 553,804.74 and 102,961.88

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Solution

The fourth proportional to 369,208.46, 553,804.74 and 102,961.88 is: 154,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,208.46 : 553,804.74 = 102,961.88 : x
  2. Step 2: Convert to fraction form
    369,208.46/553,804.74 = 102,961.88/x
  3. Step 3: Cross multiply
    369,208.46x = 553,804.74 × 102,961.88
  4. Step 4: Simplify right side
    369,208.46x = 57,020,777,183.31
  5. Step 5: Solve for x
    x = 57,020,777,183.31/369,208.46
  6. Step 6: Final answer
    x = 154,440.60

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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.