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Finding the Fourth Proportional to 111,093,631.80, 155,148,447 and 111,093,631.80

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Solution

The fourth proportional to 111,093,631.80, 155,148,447 and 111,093,631.80 is: 155,148,447

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,093,631.80 : 155,148,447 = 111,093,631.80 : x
  2. Step 2: Convert to fraction form
    111,093,631.80/155,148,447 = 111,093,631.80/x
  3. Step 3: Cross multiply
    111,093,631.80x = 155,148,447 × 111,093,631.80
  4. Step 4: Simplify right side
    111,093,631.80x = 17,236,004,445,359,814
  5. Step 5: Solve for x
    x = 17,236,004,445,359,814/111,093,631.80
  6. Step 6: Final answer
    x = 155,148,447

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.