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Finding the Fourth Proportional to 119,295.15, 178,938.05 and 40,409.37

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Solution

The fourth proportional to 119,295.15, 178,938.05 and 40,409.37 is: 60,612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,295.15 : 178,938.05 = 40,409.37 : x
  2. Step 2: Convert to fraction form
    119,295.15/178,938.05 = 40,409.37/x
  3. Step 3: Cross multiply
    119,295.15x = 178,938.05 × 40,409.37
  4. Step 4: Simplify right side
    119,295.15x = 7,230,773,667.48
  5. Step 5: Solve for x
    x = 7,230,773,667.48/119,295.15
  6. Step 6: Final answer
    x = 60,612.47

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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.