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Finding the Fourth Proportional to 217,703.40, 326,535.90 and 59,917.80

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Solution

The fourth proportional to 217,703.40, 326,535.90 and 59,917.80 is: 89,871.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,703.40 : 326,535.90 = 59,917.80 : x
  2. Step 2: Convert to fraction form
    217,703.40/326,535.90 = 59,917.80/x
  3. Step 3: Cross multiply
    217,703.40x = 326,535.90 × 59,917.80
  4. Step 4: Simplify right side
    217,703.40x = 19,565,312,749.02
  5. Step 5: Solve for x
    x = 19,565,312,749.02/217,703.40
  6. Step 6: Final answer
    x = 89,871.42

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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.