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Finding the Fourth Proportional to 43,291.40, 64,937.10 and 40,051.40

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Solution

The fourth proportional to 43,291.40, 64,937.10 and 40,051.40 is: 60,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,291.40 : 64,937.10 = 40,051.40 : x
  2. Step 2: Convert to fraction form
    43,291.40/64,937.10 = 40,051.40/x
  3. Step 3: Cross multiply
    43,291.40x = 64,937.10 × 40,051.40
  4. Step 4: Simplify right side
    43,291.40x = 2,600,821,766.94
  5. Step 5: Solve for x
    x = 2,600,821,766.94/43,291.40
  6. Step 6: Final answer
    x = 60,077.10

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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.