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Finding the Fourth Proportional to 46,938,382.80, 70,420,015.80 and 16,643,086.80

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Solution

The fourth proportional to 46,938,382.80, 70,420,015.80 and 16,643,086.80 is: 24,969,041.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,938,382.80 : 70,420,015.80 = 16,643,086.80 : x
  2. Step 2: Convert to fraction form
    46,938,382.80/70,420,015.80 = 16,643,086.80/x
  3. Step 3: Cross multiply
    46,938,382.80x = 70,420,015.80 × 16,643,086.80
  4. Step 4: Simplify right side
    46,938,382.80x = 1,172,006,435,416,771.50
  5. Step 5: Solve for x
    x = 1,172,006,435,416,771.50/46,938,382.80
  6. Step 6: Final answer
    x = 24,969,041.66

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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.