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Finding the Fourth Proportional to 76,263.92, 114,980.96 and 71,118.88

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Solution

The fourth proportional to 76,263.92, 114,980.96 and 71,118.88 is: 107,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,263.92 : 114,980.96 = 71,118.88 : x
  2. Step 2: Convert to fraction form
    76,263.92/114,980.96 = 71,118.88/x
  3. Step 3: Cross multiply
    76,263.92x = 114,980.96 × 71,118.88
  4. Step 4: Simplify right side
    76,263.92x = 8,177,317,096.52
  5. Step 5: Solve for x
    x = 8,177,317,096.52/76,263.92
  6. Step 6: Final answer
    x = 107,223.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.