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Finding the Fourth Proportional to 235,845,367.80, 353,768,051.70 and 72,082,807.80

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Solution

The fourth proportional to 235,845,367.80, 353,768,051.70 and 72,082,807.80 is: 108,124,211.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,845,367.80 : 353,768,051.70 = 72,082,807.80 : x
  2. Step 2: Convert to fraction form
    235,845,367.80/353,768,051.70 = 72,082,807.80/x
  3. Step 3: Cross multiply
    235,845,367.80x = 353,768,051.70 × 72,082,807.80
  4. Step 4: Simplify right side
    235,845,367.80x = 25,500,594,476,471,560
  5. Step 5: Solve for x
    x = 25,500,594,476,471,560/235,845,367.80
  6. Step 6: Final answer
    x = 108,124,211.70

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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.