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Finding the Fourth Proportional to 70,371.48, 97,112.79 and 38,106.45

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Solution

The fourth proportional to 70,371.48, 97,112.79 and 38,106.45 is: 52,586.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,371.48 : 97,112.79 = 38,106.45 : x
  2. Step 2: Convert to fraction form
    70,371.48/97,112.79 = 38,106.45/x
  3. Step 3: Cross multiply
    70,371.48x = 97,112.79 × 38,106.45
  4. Step 4: Simplify right side
    70,371.48x = 3,700,623,676.50
  5. Step 5: Solve for x
    x = 3,700,623,676.50/70,371.48
  6. Step 6: Final answer
    x = 52,586.98

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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.