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Finding the Fourth Proportional to 147,395.52, 203,438.56 and 93,670

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Solution

The fourth proportional to 147,395.52, 203,438.56 and 93,670 is: 129,285.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,395.52 : 203,438.56 = 93,670 : x
  2. Step 2: Convert to fraction form
    147,395.52/203,438.56 = 93,670/x
  3. Step 3: Cross multiply
    147,395.52x = 203,438.56 × 93,670
  4. Step 4: Simplify right side
    147,395.52x = 19,056,089,915.20
  5. Step 5: Solve for x
    x = 19,056,089,915.20/147,395.52
  6. Step 6: Final answer
    x = 129,285.41

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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.