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Finding the Fourth Proportional to 133,292.56, 183,943.84 and 76,703.94

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Solution

The fourth proportional to 133,292.56, 183,943.84 and 76,703.94 is: 105,851.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,292.56 : 183,943.84 = 76,703.94 : x
  2. Step 2: Convert to fraction form
    133,292.56/183,943.84 = 76,703.94/x
  3. Step 3: Cross multiply
    133,292.56x = 183,943.84 × 76,703.94
  4. Step 4: Simplify right side
    133,292.56x = 14,109,217,266.73
  5. Step 5: Solve for x
    x = 14,109,217,266.73/133,292.56
  6. Step 6: Final answer
    x = 105,851.50

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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.