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Finding the Fourth Proportional to 70,888.58, 97,826.52 and 39,056.80

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Solution

The fourth proportional to 70,888.58, 97,826.52 and 39,056.80 is: 53,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,888.58 : 97,826.52 = 39,056.80 : x
  2. Step 2: Convert to fraction form
    70,888.58/97,826.52 = 39,056.80/x
  3. Step 3: Cross multiply
    70,888.58x = 97,826.52 × 39,056.80
  4. Step 4: Simplify right side
    70,888.58x = 3,820,790,826.34
  5. Step 5: Solve for x
    x = 3,820,790,826.34/70,888.58
  6. Step 6: Final answer
    x = 53,898.54

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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.