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Finding the Fourth Proportional to 66,826,780.80, 100,016,222.40 and 66,826,780.80

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Solution

The fourth proportional to 66,826,780.80, 100,016,222.40 and 66,826,780.80 is: 100,016,222.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,826,780.80 : 100,016,222.40 = 66,826,780.80 : x
  2. Step 2: Convert to fraction form
    66,826,780.80/100,016,222.40 = 66,826,780.80/x
  3. Step 3: Cross multiply
    66,826,780.80x = 100,016,222.40 × 66,826,780.80
  4. Step 4: Simplify right side
    66,826,780.80x = 6,683,762,170,768,850
  5. Step 5: Solve for x
    x = 6,683,762,170,768,850/66,826,780.80
  6. Step 6: Final answer
    x = 100,016,222.40

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1.5x scale

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.