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Finding the Fourth Proportional to 333,564.96, 500,374.98 and 108,920.40

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Solution

The fourth proportional to 333,564.96, 500,374.98 and 108,920.40 is: 163,389.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,564.96 : 500,374.98 = 108,920.40 : x
  2. Step 2: Convert to fraction form
    333,564.96/500,374.98 = 108,920.40/x
  3. Step 3: Cross multiply
    333,564.96x = 500,374.98 × 108,920.40
  4. Step 4: Simplify right side
    333,564.96x = 54,501,042,971.59
  5. Step 5: Solve for x
    x = 54,501,042,971.59/333,564.96
  6. Step 6: Final answer
    x = 163,389.59

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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.