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Finding the Fourth Proportional to 131,974,855.20, 185,147,434.80 and 131,974,855.20

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Solution

The fourth proportional to 131,974,855.20, 185,147,434.80 and 131,974,855.20 is: 185,147,434.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,974,855.20 : 185,147,434.80 = 131,974,855.20 : x
  2. Step 2: Convert to fraction form
    131,974,855.20/185,147,434.80 = 131,974,855.20/x
  3. Step 3: Cross multiply
    131,974,855.20x = 185,147,434.80 × 131,974,855.20
  4. Step 4: Simplify right side
    131,974,855.20x = 24,434,805,898,381,444
  5. Step 5: Solve for x
    x = 24,434,805,898,381,444/131,974,855.20
  6. Step 6: Final answer
    x = 185,147,434.80

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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.