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Finding the Fourth Proportional to 133,602.68, 184,369.86 and 73,173.31

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Solution

The fourth proportional to 133,602.68, 184,369.86 and 73,173.31 is: 100,978.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,602.68 : 184,369.86 = 73,173.31 : x
  2. Step 2: Convert to fraction form
    133,602.68/184,369.86 = 73,173.31/x
  3. Step 3: Cross multiply
    133,602.68x = 184,369.86 × 73,173.31
  4. Step 4: Simplify right side
    133,602.68x = 13,490,952,459.51
  5. Step 5: Solve for x
    x = 13,490,952,459.51/133,602.68
  6. Step 6: Final answer
    x = 100,978.16

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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.