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Finding the Fourth Proportional to 40,701.60, 61,052.40 and 34,140.60

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Solution

The fourth proportional to 40,701.60, 61,052.40 and 34,140.60 is: 51,210.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,701.60 : 61,052.40 = 34,140.60 : x
  2. Step 2: Convert to fraction form
    40,701.60/61,052.40 = 34,140.60/x
  3. Step 3: Cross multiply
    40,701.60x = 61,052.40 × 34,140.60
  4. Step 4: Simplify right side
    40,701.60x = 2,084,365,567.44
  5. Step 5: Solve for x
    x = 2,084,365,567.44/40,701.60
  6. Step 6: Final answer
    x = 51,210.90

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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.