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Finding the Fourth Proportional to 66,684,974.04, 92,026,353.81 and 36,508,967.55

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Solution

The fourth proportional to 66,684,974.04, 92,026,353.81 and 36,508,967.55 is: 50,382,971.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,684,974.04 : 92,026,353.81 = 36,508,967.55 : x
  2. Step 2: Convert to fraction form
    66,684,974.04/92,026,353.81 = 36,508,967.55/x
  3. Step 3: Cross multiply
    66,684,974.04x = 92,026,353.81 × 36,508,967.55
  4. Step 4: Simplify right side
    66,684,974.04x = 3,359,787,164,994,108.50
  5. Step 5: Solve for x
    x = 3,359,787,164,994,108.50/66,684,974.04
  6. Step 6: Final answer
    x = 50,382,971.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.