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Finding the Fourth Proportional to 48,403,928.80, 67,815,888.80 and 48,403,928.80

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Solution

The fourth proportional to 48,403,928.80, 67,815,888.80 and 48,403,928.80 is: 67,815,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,403,928.80 : 67,815,888.80 = 48,403,928.80 : x
  2. Step 2: Convert to fraction form
    48,403,928.80/67,815,888.80 = 48,403,928.80/x
  3. Step 3: Cross multiply
    48,403,928.80x = 67,815,888.80 × 48,403,928.80
  4. Step 4: Simplify right side
    48,403,928.80x = 3,282,555,452,983,917
  5. Step 5: Solve for x
    x = 3,282,555,452,983,917/48,403,928.80
  6. Step 6: Final answer
    x = 67,815,888.80

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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.