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Finding the Fourth Proportional to 78,763.84, 118,125.60 and 23,346.88

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Solution

The fourth proportional to 78,763.84, 118,125.60 and 23,346.88 is: 35,014.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,763.84 : 118,125.60 = 23,346.88 : x
  2. Step 2: Convert to fraction form
    78,763.84/118,125.60 = 23,346.88/x
  3. Step 3: Cross multiply
    78,763.84x = 118,125.60 × 23,346.88
  4. Step 4: Simplify right side
    78,763.84x = 2,757,864,208.13
  5. Step 5: Solve for x
    x = 2,757,864,208.13/78,763.84
  6. Step 6: Final answer
    x = 35,014.34

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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.