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Finding the Fourth Proportional to 115,248, 172,940.04 and 48,683.82

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Solution

The fourth proportional to 115,248, 172,940.04 and 48,683.82 is: 73,054.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,248 : 172,940.04 = 48,683.82 : x
  2. Step 2: Convert to fraction form
    115,248/172,940.04 = 48,683.82/x
  3. Step 3: Cross multiply
    115,248x = 172,940.04 × 48,683.82
  4. Step 4: Simplify right side
    115,248x = 8,419,381,778.15
  5. Step 5: Solve for x
    x = 8,419,381,778.15/115,248
  6. Step 6: Final answer
    x = 73,054.47

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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.