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Finding the Fourth Proportional to 132,637, 183,039.12 and 73,021

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Solution

The fourth proportional to 132,637, 183,039.12 and 73,021 is: 100,769.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,637 : 183,039.12 = 73,021 : x
  2. Step 2: Convert to fraction form
    132,637/183,039.12 = 73,021/x
  3. Step 3: Cross multiply
    132,637x = 183,039.12 × 73,021
  4. Step 4: Simplify right side
    132,637x = 13,365,699,581.52
  5. Step 5: Solve for x
    x = 13,365,699,581.52/132,637
  6. Step 6: Final answer
    x = 100,769.01

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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.