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Finding the Fourth Proportional to 57,011.68, 78,670.02 and 33,133.36

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Solution

The fourth proportional to 57,011.68, 78,670.02 and 33,133.36 is: 45,720.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,011.68 : 78,670.02 = 33,133.36 : x
  2. Step 2: Convert to fraction form
    57,011.68/78,670.02 = 33,133.36/x
  3. Step 3: Cross multiply
    57,011.68x = 78,670.02 × 33,133.36
  4. Step 4: Simplify right side
    57,011.68x = 2,606,602,093.87
  5. Step 5: Solve for x
    x = 2,606,602,093.87/57,011.68
  6. Step 6: Final answer
    x = 45,720.49

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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.