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Finding the Fourth Proportional to 71,570,480.80, 107,411,708.40 and 33,236,744.80

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Solution

The fourth proportional to 71,570,480.80, 107,411,708.40 and 33,236,744.80 is: 49,881,117.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,570,480.80 : 107,411,708.40 = 33,236,744.80 : x
  2. Step 2: Convert to fraction form
    71,570,480.80/107,411,708.40 = 33,236,744.80/x
  3. Step 3: Cross multiply
    71,570,480.80x = 107,411,708.40 × 33,236,744.80
  4. Step 4: Simplify right side
    71,570,480.80x = 3,570,015,540,622,816.50
  5. Step 5: Solve for x
    x = 3,570,015,540,622,816.50/71,570,480.80
  6. Step 6: Final answer
    x = 49,881,117.20

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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.