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Finding the Fourth Proportional to 173,709.40, 260,388.68 and 83,619.81

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Solution

The fourth proportional to 173,709.40, 260,388.68 and 83,619.81 is: 125,345.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,709.40 : 260,388.68 = 83,619.81 : x
  2. Step 2: Convert to fraction form
    173,709.40/260,388.68 = 83,619.81/x
  3. Step 3: Cross multiply
    173,709.40x = 260,388.68 × 83,619.81
  4. Step 4: Simplify right side
    173,709.40x = 21,773,651,947.75
  5. Step 5: Solve for x
    x = 21,773,651,947.75/173,709.40
  6. Step 6: Final answer
    x = 125,345.27

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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.