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Finding the Fourth Proportional to 61,805,808.80, 92,741,890.80 and 25,907,645.60

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Solution

The fourth proportional to 61,805,808.80, 92,741,890.80 and 25,907,645.60 is: 38,875,375.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,805,808.80 : 92,741,890.80 = 25,907,645.60 : x
  2. Step 2: Convert to fraction form
    61,805,808.80/92,741,890.80 = 25,907,645.60/x
  3. Step 3: Cross multiply
    61,805,808.80x = 92,741,890.80 × 25,907,645.60
  4. Step 4: Simplify right side
    61,805,808.80x = 2,402,724,039,120,300.50
  5. Step 5: Solve for x
    x = 2,402,724,039,120,300.50/61,805,808.80
  6. Step 6: Final answer
    x = 38,875,375.73

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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.