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Finding the Fourth Proportional to 72,310.65, 108,277.34 and 58,193.56

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Solution

The fourth proportional to 72,310.65, 108,277.34 and 58,193.56 is: 87,138.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,310.65 : 108,277.34 = 58,193.56 : x
  2. Step 2: Convert to fraction form
    72,310.65/108,277.34 = 58,193.56/x
  3. Step 3: Cross multiply
    72,310.65x = 108,277.34 × 58,193.56
  4. Step 4: Simplify right side
    72,310.65x = 6,301,043,881.93
  5. Step 5: Solve for x
    x = 6,301,043,881.93/72,310.65
  6. Step 6: Final answer
    x = 87,138.53

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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.