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Finding the Fourth Proportional to 72,898.74, 100,582.56 and 41,067.60

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Solution

The fourth proportional to 72,898.74, 100,582.56 and 41,067.60 is: 56,663.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,898.74 : 100,582.56 = 41,067.60 : x
  2. Step 2: Convert to fraction form
    72,898.74/100,582.56 = 41,067.60/x
  3. Step 3: Cross multiply
    72,898.74x = 100,582.56 × 41,067.60
  4. Step 4: Simplify right side
    72,898.74x = 4,130,684,341.06
  5. Step 5: Solve for x
    x = 4,130,684,341.06/72,898.74
  6. Step 6: Final answer
    x = 56,663.32

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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.