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Finding the Fourth Proportional to 86,645.58, 119,572.65 and 48,912.54

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Solution

The fourth proportional to 86,645.58, 119,572.65 and 48,912.54 is: 67,500.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,645.58 : 119,572.65 = 48,912.54 : x
  2. Step 2: Convert to fraction form
    86,645.58/119,572.65 = 48,912.54/x
  3. Step 3: Cross multiply
    86,645.58x = 119,572.65 × 48,912.54
  4. Step 4: Simplify right side
    86,645.58x = 5,848,602,026.03
  5. Step 5: Solve for x
    x = 5,848,602,026.03/86,645.58
  6. Step 6: Final answer
    x = 67,500.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.