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Finding the Fourth Proportional to 119,295.77, 178,938.95 and 40,409.98

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Solution

The fourth proportional to 119,295.77, 178,938.95 and 40,409.98 is: 60,613.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,295.77 : 178,938.95 = 40,409.98 : x
  2. Step 2: Convert to fraction form
    119,295.77/178,938.95 = 40,409.98/x
  3. Step 3: Cross multiply
    119,295.77x = 178,938.95 × 40,409.98
  4. Step 4: Simplify right side
    119,295.77x = 7,230,918,741.32
  5. Step 5: Solve for x
    x = 7,230,918,741.32/119,295.77
  6. Step 6: Final answer
    x = 60,613.37

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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.