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Finding the Fourth Proportional to 39,148,801.80, 54,921,696.60 and 39,148,801.80

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Solution

The fourth proportional to 39,148,801.80, 54,921,696.60 and 39,148,801.80 is: 54,921,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,148,801.80 : 54,921,696.60 = 39,148,801.80 : x
  2. Step 2: Convert to fraction form
    39,148,801.80/54,921,696.60 = 39,148,801.80/x
  3. Step 3: Cross multiply
    39,148,801.80x = 54,921,696.60 × 39,148,801.80
  4. Step 4: Simplify right side
    39,148,801.80x = 2,150,118,614,713,133.75
  5. Step 5: Solve for x
    x = 2,150,118,614,713,133.75/39,148,801.80
  6. Step 6: Final answer
    x = 54,921,696.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.