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Finding the Fourth Proportional to 173,643.96, 260,426.37 and 83,640.69

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Solution

The fourth proportional to 173,643.96, 260,426.37 and 83,640.69 is: 125,441.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,643.96 : 260,426.37 = 83,640.69 : x
  2. Step 2: Convert to fraction form
    173,643.96/260,426.37 = 83,640.69/x
  3. Step 3: Cross multiply
    173,643.96x = 260,426.37 × 83,640.69
  4. Step 4: Simplify right side
    173,643.96x = 21,782,241,281.00
  5. Step 5: Solve for x
    x = 21,782,241,281.00/173,643.96
  6. Step 6: Final answer
    x = 125,441.97

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1.5x scale

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.