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Finding the Fourth Proportional to 253,712.33, 380,693.54 and 118,785.52

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Solution

The fourth proportional to 253,712.33, 380,693.54 and 118,785.52 is: 178,236.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,712.33 : 380,693.54 = 118,785.52 : x
  2. Step 2: Convert to fraction form
    253,712.33/380,693.54 = 118,785.52/x
  3. Step 3: Cross multiply
    253,712.33x = 380,693.54 × 118,785.52
  4. Step 4: Simplify right side
    253,712.33x = 45,220,880,109.54
  5. Step 5: Solve for x
    x = 45,220,880,109.54/253,712.33
  6. Step 6: Final answer
    x = 178,236.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.