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Finding the Fourth Proportional to 117,000.60, 175,112.10 and 82,008.60

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Solution

The fourth proportional to 117,000.60, 175,112.10 and 82,008.60 is: 122,740.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,000.60 : 175,112.10 = 82,008.60 : x
  2. Step 2: Convert to fraction form
    117,000.60/175,112.10 = 82,008.60/x
  3. Step 3: Cross multiply
    117,000.60x = 175,112.10 × 82,008.60
  4. Step 4: Simplify right side
    117,000.60x = 14,360,698,164.06
  5. Step 5: Solve for x
    x = 14,360,698,164.06/117,000.60
  6. Step 6: Final answer
    x = 122,740.38

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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.