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Finding the Fourth Proportional to 70,666.02, 105,824.07 and 51,901.56

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Solution

The fourth proportional to 70,666.02, 105,824.07 and 51,901.56 is: 77,723.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,666.02 : 105,824.07 = 51,901.56 : x
  2. Step 2: Convert to fraction form
    70,666.02/105,824.07 = 51,901.56/x
  3. Step 3: Cross multiply
    70,666.02x = 105,824.07 × 51,901.56
  4. Step 4: Simplify right side
    70,666.02x = 5,492,434,318.55
  5. Step 5: Solve for x
    x = 5,492,434,318.55/70,666.02
  6. Step 6: Final answer
    x = 77,723.84

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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.