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Finding the Fourth Proportional to 131,974,857.20, 185,147,437.60 and 131,974,857.20

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Solution

The fourth proportional to 131,974,857.20, 185,147,437.60 and 131,974,857.20 is: 185,147,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,974,857.20 : 185,147,437.60 = 131,974,857.20 : x
  2. Step 2: Convert to fraction form
    131,974,857.20/185,147,437.60 = 131,974,857.20/x
  3. Step 3: Cross multiply
    131,974,857.20x = 185,147,437.60 × 131,974,857.20
  4. Step 4: Simplify right side
    131,974,857.20x = 24,434,806,638,205,912
  5. Step 5: Solve for x
    x = 24,434,806,638,205,912/131,974,857.20
  6. Step 6: Final answer
    x = 185,147,437.60

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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.