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Finding the Fourth Proportional to 115,802.54, 173,725.72 and 39,880.88

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Solution

The fourth proportional to 115,802.54, 173,725.72 and 39,880.88 is: 59,828.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,802.54 : 173,725.72 = 39,880.88 : x
  2. Step 2: Convert to fraction form
    115,802.54/173,725.72 = 39,880.88/x
  3. Step 3: Cross multiply
    115,802.54x = 173,725.72 × 39,880.88
  4. Step 4: Simplify right side
    115,802.54x = 6,928,334,592.23
  5. Step 5: Solve for x
    x = 6,928,334,592.23/115,802.54
  6. Step 6: Final answer
    x = 59,828.87

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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.