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Finding the Fourth Proportional to 74,857.60, 103,302.80 and 41,323.52

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Solution

The fourth proportional to 74,857.60, 103,302.80 and 41,323.52 is: 57,026.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,857.60 : 103,302.80 = 41,323.52 : x
  2. Step 2: Convert to fraction form
    74,857.60/103,302.80 = 41,323.52/x
  3. Step 3: Cross multiply
    74,857.60x = 103,302.80 × 41,323.52
  4. Step 4: Simplify right side
    74,857.60x = 4,268,835,321.86
  5. Step 5: Solve for x
    x = 4,268,835,321.86/74,857.60
  6. Step 6: Final answer
    x = 57,026.08

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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.