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Finding the Fourth Proportional to 119,953.63, 179,955.82 and 45,074.43

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Solution

The fourth proportional to 119,953.63, 179,955.82 and 45,074.43 is: 67,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,953.63 : 179,955.82 = 45,074.43 : x
  2. Step 2: Convert to fraction form
    119,953.63/179,955.82 = 45,074.43/x
  3. Step 3: Cross multiply
    119,953.63x = 179,955.82 × 45,074.43
  4. Step 4: Simplify right side
    119,953.63x = 8,111,405,111.90
  5. Step 5: Solve for x
    x = 8,111,405,111.90/119,953.63
  6. Step 6: Final answer
    x = 67,621.17

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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.