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Finding the Fourth Proportional to 40,804,986.90, 61,193,191.95 and 12,043,506.90

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Solution

The fourth proportional to 40,804,986.90, 61,193,191.95 and 12,043,506.90 is: 18,061,043.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,804,986.90 : 61,193,191.95 = 12,043,506.90 : x
  2. Step 2: Convert to fraction form
    40,804,986.90/61,193,191.95 = 12,043,506.90/x
  3. Step 3: Cross multiply
    40,804,986.90x = 61,193,191.95 × 12,043,506.90
  4. Step 4: Simplify right side
    40,804,986.90x = 736,980,629,482,849.50
  5. Step 5: Solve for x
    x = 736,980,629,482,849.50/40,804,986.90
  6. Step 6: Final answer
    x = 18,061,043.16

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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.