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Finding the Fourth Proportional to 147,580.01, 203,659.45 and 83,917.81

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Solution

The fourth proportional to 147,580.01, 203,659.45 and 83,917.81 is: 115,806.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,580.01 : 203,659.45 = 83,917.81 : x
  2. Step 2: Convert to fraction form
    147,580.01/203,659.45 = 83,917.81/x
  3. Step 3: Cross multiply
    147,580.01x = 203,659.45 × 83,917.81
  4. Step 4: Simplify right side
    147,580.01x = 17,090,655,029.80
  5. Step 5: Solve for x
    x = 17,090,655,029.80/147,580.01
  6. Step 6: Final answer
    x = 115,806.03

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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.