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Finding the Fourth Proportional to 74,572.60, 102,910.20 and 41,038.60

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Solution

The fourth proportional to 74,572.60, 102,910.20 and 41,038.60 is: 56,633.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,572.60 : 102,910.20 = 41,038.60 : x
  2. Step 2: Convert to fraction form
    74,572.60/102,910.20 = 41,038.60/x
  3. Step 3: Cross multiply
    74,572.60x = 102,910.20 × 41,038.60
  4. Step 4: Simplify right side
    74,572.60x = 4,223,290,533.72
  5. Step 5: Solve for x
    x = 4,223,290,533.72/74,572.60
  6. Step 6: Final answer
    x = 56,633.27

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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.