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Finding the Fourth Proportional to 133,330.63, 184,013.20 and 75,990.57

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Solution

The fourth proportional to 133,330.63, 184,013.20 and 75,990.57 is: 104,876.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,330.63 : 184,013.20 = 75,990.57 : x
  2. Step 2: Convert to fraction form
    133,330.63/184,013.20 = 75,990.57/x
  3. Step 3: Cross multiply
    133,330.63x = 184,013.20 × 75,990.57
  4. Step 4: Simplify right side
    133,330.63x = 13,983,266,655.51
  5. Step 5: Solve for x
    x = 13,983,266,655.51/133,330.63
  6. Step 6: Final answer
    x = 104,876.63

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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.