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Finding the Fourth Proportional to 70,848.03, 97,769.10 and 39,019.89

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Solution

The fourth proportional to 70,848.03, 97,769.10 and 39,019.89 is: 53,846.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,848.03 : 97,769.10 = 39,019.89 : x
  2. Step 2: Convert to fraction form
    70,848.03/97,769.10 = 39,019.89/x
  3. Step 3: Cross multiply
    70,848.03x = 97,769.10 × 39,019.89
  4. Step 4: Simplify right side
    70,848.03x = 3,814,939,527.40
  5. Step 5: Solve for x
    x = 3,814,939,527.40/70,848.03
  6. Step 6: Final answer
    x = 53,846.80

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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.