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Finding the Fourth Proportional to 70,336.25, 97,065.22 and 43,478.06

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Solution

The fourth proportional to 70,336.25, 97,065.22 and 43,478.06 is: 60,000.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,336.25 : 97,065.22 = 43,478.06 : x
  2. Step 2: Convert to fraction form
    70,336.25/97,065.22 = 43,478.06/x
  3. Step 3: Cross multiply
    70,336.25x = 97,065.22 × 43,478.06
  4. Step 4: Simplify right side
    70,336.25x = 4,220,207,459.07
  5. Step 5: Solve for x
    x = 4,220,207,459.07/70,336.25
  6. Step 6: Final answer
    x = 60,000.47

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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.