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Finding the Fourth Proportional to 119,627.40, 179,219.70 and 69,731.40

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Solution

The fourth proportional to 119,627.40, 179,219.70 and 69,731.40 is: 104,468.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,627.40 : 179,219.70 = 69,731.40 : x
  2. Step 2: Convert to fraction form
    119,627.40/179,219.70 = 69,731.40/x
  3. Step 3: Cross multiply
    119,627.40x = 179,219.70 × 69,731.40
  4. Step 4: Simplify right side
    119,627.40x = 12,497,240,588.58
  5. Step 5: Solve for x
    x = 12,497,240,588.58/119,627.40
  6. Step 6: Final answer
    x = 104,468.04

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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.