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Finding the Fourth Proportional to 74,668.96, 112,003.72 and 51,224.32

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Solution

The fourth proportional to 74,668.96, 112,003.72 and 51,224.32 is: 76,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,668.96 : 112,003.72 = 51,224.32 : x
  2. Step 2: Convert to fraction form
    74,668.96/112,003.72 = 51,224.32/x
  3. Step 3: Cross multiply
    74,668.96x = 112,003.72 × 51,224.32
  4. Step 4: Simplify right side
    74,668.96x = 5,737,314,394.47
  5. Step 5: Solve for x
    x = 5,737,314,394.47/74,668.96
  6. Step 6: Final answer
    x = 76,836.67

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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.