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Finding the Fourth Proportional to 70,881.27, 97,818.40 and 39,051.30

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Solution

The fourth proportional to 70,881.27, 97,818.40 and 39,051.30 is: 53,892.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,881.27 : 97,818.40 = 39,051.30 : x
  2. Step 2: Convert to fraction form
    70,881.27/97,818.40 = 39,051.30/x
  3. Step 3: Cross multiply
    70,881.27x = 97,818.40 × 39,051.30
  4. Step 4: Simplify right side
    70,881.27x = 3,819,935,683.92
  5. Step 5: Solve for x
    x = 3,819,935,683.92/70,881.27
  6. Step 6: Final answer
    x = 53,892.03

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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.