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Finding the Fourth Proportional to 354,536.58, 531,804.60 and 105,218.58

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Solution

The fourth proportional to 354,536.58, 531,804.60 and 105,218.58 is: 157,827.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,536.58 : 531,804.60 = 105,218.58 : x
  2. Step 2: Convert to fraction form
    354,536.58/531,804.60 = 105,218.58/x
  3. Step 3: Cross multiply
    354,536.58x = 531,804.60 × 105,218.58
  4. Step 4: Simplify right side
    354,536.58x = 55,955,724,849.47
  5. Step 5: Solve for x
    x = 55,955,724,849.47/354,536.58
  6. Step 6: Final answer
    x = 157,827.79

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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.