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Finding the Fourth Proportional to 71,570,472.80, 107,411,696.40 and 33,236,736.80

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Solution

The fourth proportional to 71,570,472.80, 107,411,696.40 and 33,236,736.80 is: 49,881,105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,570,472.80 : 107,411,696.40 = 33,236,736.80 : x
  2. Step 2: Convert to fraction form
    71,570,472.80/107,411,696.40 = 33,236,736.80/x
  3. Step 3: Cross multiply
    71,570,472.80x = 107,411,696.40 × 33,236,736.80
  4. Step 4: Simplify right side
    71,570,472.80x = 3,570,014,282,488,308
  5. Step 5: Solve for x
    x = 3,570,014,282,488,308/71,570,472.80
  6. Step 6: Final answer
    x = 49,881,105.19

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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.