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Finding the Fourth Proportional to 76,096.89, 104,989.91 and 45,891.45

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Solution

The fourth proportional to 76,096.89, 104,989.91 and 45,891.45 is: 63,315.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,096.89 : 104,989.91 = 45,891.45 : x
  2. Step 2: Convert to fraction form
    76,096.89/104,989.91 = 45,891.45/x
  3. Step 3: Cross multiply
    76,096.89x = 104,989.91 × 45,891.45
  4. Step 4: Simplify right side
    76,096.89x = 4,818,138,975.81
  5. Step 5: Solve for x
    x = 4,818,138,975.81/76,096.89
  6. Step 6: Final answer
    x = 63,315.85

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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.