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Finding the Fourth Proportional to 103,672.94, 155,467.56 and 40,484.03

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Solution

The fourth proportional to 103,672.94, 155,467.56 and 40,484.03 is: 60,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,672.94 : 155,467.56 = 40,484.03 : x
  2. Step 2: Convert to fraction form
    103,672.94/155,467.56 = 40,484.03/x
  3. Step 3: Cross multiply
    103,672.94x = 155,467.56 × 40,484.03
  4. Step 4: Simplify right side
    103,672.94x = 6,293,953,363.07
  5. Step 5: Solve for x
    x = 6,293,953,363.07/103,672.94
  6. Step 6: Final answer
    x = 60,709.70

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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.