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Finding the Fourth Proportional to 51,209,582.80, 76,814,374.20 and 51,209,582.80

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Solution

The fourth proportional to 51,209,582.80, 76,814,374.20 and 51,209,582.80 is: 76,814,374.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,209,582.80 : 76,814,374.20 = 51,209,582.80 : x
  2. Step 2: Convert to fraction form
    51,209,582.80/76,814,374.20 = 51,209,582.80/x
  3. Step 3: Cross multiply
    51,209,582.80x = 76,814,374.20 × 51,209,582.80
  4. Step 4: Simplify right side
    51,209,582.80x = 3,933,632,055,825,083.50
  5. Step 5: Solve for x
    x = 3,933,632,055,825,083.50/51,209,582.80
  6. Step 6: Final answer
    x = 76,814,374.20

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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.