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Finding the Fourth Proportional to 104,602.55, 156,970.56 and 38,036.30

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Solution

The fourth proportional to 104,602.55, 156,970.56 and 38,036.30 is: 57,078.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,602.55 : 156,970.56 = 38,036.30 : x
  2. Step 2: Convert to fraction form
    104,602.55/156,970.56 = 38,036.30/x
  3. Step 3: Cross multiply
    104,602.55x = 156,970.56 × 38,036.30
  4. Step 4: Simplify right side
    104,602.55x = 5,970,579,311.33
  5. Step 5: Solve for x
    x = 5,970,579,311.33/104,602.55
  6. Step 6: Final answer
    x = 57,078.72

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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.