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Finding the Fourth Proportional to 70,736.31, 97,578.41 and 53,712.34

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Solution

The fourth proportional to 70,736.31, 97,578.41 and 53,712.34 is: 74,094.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,736.31 : 97,578.41 = 53,712.34 : x
  2. Step 2: Convert to fraction form
    70,736.31/97,578.41 = 53,712.34/x
  3. Step 3: Cross multiply
    70,736.31x = 97,578.41 × 53,712.34
  4. Step 4: Simplify right side
    70,736.31x = 5,241,164,222.07
  5. Step 5: Solve for x
    x = 5,241,164,222.07/70,736.31
  6. Step 6: Final answer
    x = 74,094.40

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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.