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Finding the Fourth Proportional to 500,842.60, 751,252.94 and 121,765.34

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Solution

The fourth proportional to 500,842.60, 751,252.94 and 121,765.34 is: 182,645.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,842.60 : 751,252.94 = 121,765.34 : x
  2. Step 2: Convert to fraction form
    500,842.60/751,252.94 = 121,765.34/x
  3. Step 3: Cross multiply
    500,842.60x = 751,252.94 × 121,765.34
  4. Step 4: Simplify right side
    500,842.60x = 91,476,569,056.27
  5. Step 5: Solve for x
    x = 91,476,569,056.27/500,842.60
  6. Step 6: Final answer
    x = 182,645.35

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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.