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Finding the Fourth Proportional to 40,990,242.70, 61,476,506.70 and 17,961,132.70

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Solution

The fourth proportional to 40,990,242.70, 61,476,506.70 and 17,961,132.70 is: 26,937,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,990,242.70 : 61,476,506.70 = 17,961,132.70 : x
  2. Step 2: Convert to fraction form
    40,990,242.70/61,476,506.70 = 17,961,132.70/x
  3. Step 3: Cross multiply
    40,990,242.70x = 61,476,506.70 × 17,961,132.70
  4. Step 4: Simplify right side
    40,990,242.70x = 1,104,187,694,771,139.12
  5. Step 5: Solve for x
    x = 1,104,187,694,771,139.12/40,990,242.70
  6. Step 6: Final answer
    x = 26,937,817.93

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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.