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Finding the Fourth Proportional to 223,406.46, 308,300.90 and 122,804.46

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Solution

The fourth proportional to 223,406.46, 308,300.90 and 122,804.46 is: 169,470.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,406.46 : 308,300.90 = 122,804.46 : x
  2. Step 2: Convert to fraction form
    223,406.46/308,300.90 = 122,804.46/x
  3. Step 3: Cross multiply
    223,406.46x = 308,300.90 × 122,804.46
  4. Step 4: Simplify right side
    223,406.46x = 37,860,724,927.99
  5. Step 5: Solve for x
    x = 37,860,724,927.99/223,406.46
  6. Step 6: Final answer
    x = 169,470.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.