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Finding the Fourth Proportional to 126,802.26, 174,987 and 70,213.50

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Solution

The fourth proportional to 126,802.26, 174,987 and 70,213.50 is: 96,894.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,802.26 : 174,987 = 70,213.50 : x
  2. Step 2: Convert to fraction form
    126,802.26/174,987 = 70,213.50/x
  3. Step 3: Cross multiply
    126,802.26x = 174,987 × 70,213.50
  4. Step 4: Simplify right side
    126,802.26x = 12,286,449,724.50
  5. Step 5: Solve for x
    x = 12,286,449,724.50/126,802.26
  6. Step 6: Final answer
    x = 96,894.56

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1.5x scale

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.