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Finding the Fourth Proportional to 186,605,896.80, 279,908,845.20 and 50,291,280.30

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Solution

The fourth proportional to 186,605,896.80, 279,908,845.20 and 50,291,280.30 is: 75,436,920.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,605,896.80 : 279,908,845.20 = 50,291,280.30 : x
  2. Step 2: Convert to fraction form
    186,605,896.80/279,908,845.20 = 50,291,280.30/x
  3. Step 3: Cross multiply
    186,605,896.80x = 279,908,845.20 × 50,291,280.30
  4. Step 4: Simplify right side
    186,605,896.80x = 14,076,974,192,402,508
  5. Step 5: Solve for x
    x = 14,076,974,192,402,508/186,605,896.80
  6. Step 6: Final answer
    x = 75,436,920.45

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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.