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Finding the Fourth Proportional to 126,802.87, 174,985.82 and 70,213.03

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Solution

The fourth proportional to 126,802.87, 174,985.82 and 70,213.03 is: 96,892.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,802.87 : 174,985.82 = 70,213.03 : x
  2. Step 2: Convert to fraction form
    126,802.87/174,985.82 = 70,213.03/x
  3. Step 3: Cross multiply
    126,802.87x = 174,985.82 × 70,213.03
  4. Step 4: Simplify right side
    126,802.87x = 12,286,284,104.00
  5. Step 5: Solve for x
    x = 12,286,284,104.00/126,802.87
  6. Step 6: Final answer
    x = 96,892.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.