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Finding the Fourth Proportional to 76,495.20, 114,749.88 and 29,751.60

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Solution

The fourth proportional to 76,495.20, 114,749.88 and 29,751.60 is: 44,630.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,495.20 : 114,749.88 = 29,751.60 : x
  2. Step 2: Convert to fraction form
    76,495.20/114,749.88 = 29,751.60/x
  3. Step 3: Cross multiply
    76,495.20x = 114,749.88 × 29,751.60
  4. Step 4: Simplify right side
    76,495.20x = 3,413,992,529.81
  5. Step 5: Solve for x
    x = 3,413,992,529.81/76,495.20
  6. Step 6: Final answer
    x = 44,630.15

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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.