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Finding the Fourth Proportional to 186,605,895.80, 279,908,843.70 and 50,291,279.30

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Solution

The fourth proportional to 186,605,895.80, 279,908,843.70 and 50,291,279.30 is: 75,436,918.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,605,895.80 : 279,908,843.70 = 50,291,279.30 : x
  2. Step 2: Convert to fraction form
    186,605,895.80/279,908,843.70 = 50,291,279.30/x
  3. Step 3: Cross multiply
    186,605,895.80x = 279,908,843.70 × 50,291,279.30
  4. Step 4: Simplify right side
    186,605,895.80x = 14,076,973,837,056,744
  5. Step 5: Solve for x
    x = 14,076,973,837,056,744/186,605,895.80
  6. Step 6: Final answer
    x = 75,436,918.95

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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.