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Finding the Fourth Proportional to 115,362.93, 173,056.74 and 48,809.79

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Solution

The fourth proportional to 115,362.93, 173,056.74 and 48,809.79 is: 73,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,362.93 : 173,056.74 = 48,809.79 : x
  2. Step 2: Convert to fraction form
    115,362.93/173,056.74 = 48,809.79/x
  3. Step 3: Cross multiply
    115,362.93x = 173,056.74 × 48,809.79
  4. Step 4: Simplify right side
    115,362.93x = 8,446,863,137.48
  5. Step 5: Solve for x
    x = 8,446,863,137.48/115,362.93
  6. Step 6: Final answer
    x = 73,219.91

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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.