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Finding the Fourth Proportional to 235,293.06, 352,938.69 and 66,813.39

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Solution

The fourth proportional to 235,293.06, 352,938.69 and 66,813.39 is: 100,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,293.06 : 352,938.69 = 66,813.39 : x
  2. Step 2: Convert to fraction form
    235,293.06/352,938.69 = 66,813.39/x
  3. Step 3: Cross multiply
    235,293.06x = 352,938.69 × 66,813.39
  4. Step 4: Simplify right side
    235,293.06x = 23,581,030,341.06
  5. Step 5: Solve for x
    x = 23,581,030,341.06/235,293.06
  6. Step 6: Final answer
    x = 100,219.83

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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.