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Finding the Fourth Proportional to 113,869.83, 170,866.44 and 47,355.87

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Solution

The fourth proportional to 113,869.83, 170,866.44 and 47,355.87 is: 71,059.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,869.83 : 170,866.44 = 47,355.87 : x
  2. Step 2: Convert to fraction form
    113,869.83/170,866.44 = 47,355.87/x
  3. Step 3: Cross multiply
    113,869.83x = 170,866.44 × 47,355.87
  4. Step 4: Simplify right side
    113,869.83x = 8,091,528,920.00
  5. Step 5: Solve for x
    x = 8,091,528,920.00/113,869.83
  6. Step 6: Final answer
    x = 71,059.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.