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Finding the Fourth Proportional to 53,907,718.80, 80,806,465.80 and 26,571,968.40

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Solution

The fourth proportional to 53,907,718.80, 80,806,465.80 and 26,571,968.40 is: 39,830,786.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,907,718.80 : 80,806,465.80 = 26,571,968.40 : x
  2. Step 2: Convert to fraction form
    53,907,718.80/80,806,465.80 = 26,571,968.40/x
  3. Step 3: Cross multiply
    53,907,718.80x = 80,806,465.80 × 26,571,968.40
  4. Step 4: Simplify right side
    53,907,718.80x = 2,147,186,855,753,280.50
  5. Step 5: Solve for x
    x = 2,147,186,855,753,280.50/53,907,718.80
  6. Step 6: Final answer
    x = 39,830,786.83

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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.