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Finding the Fourth Proportional to 74,805,328.80, 112,113,514.80 and 36,384,112.80

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Solution

The fourth proportional to 74,805,328.80, 112,113,514.80 and 36,384,112.80 is: 54,530,216.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,805,328.80 : 112,113,514.80 = 36,384,112.80 : x
  2. Step 2: Convert to fraction form
    74,805,328.80/112,113,514.80 = 36,384,112.80/x
  3. Step 3: Cross multiply
    74,805,328.80x = 112,113,514.80 × 36,384,112.80
  4. Step 4: Simplify right side
    74,805,328.80x = 4,079,150,768,887,669
  5. Step 5: Solve for x
    x = 4,079,150,768,887,669/74,805,328.80
  6. Step 6: Final answer
    x = 54,530,216.42

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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.