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Finding the Fourth Proportional to 70,526,467.80, 105,789,701.70 and 59,189,059.80

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Solution

The fourth proportional to 70,526,467.80, 105,789,701.70 and 59,189,059.80 is: 88,783,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,526,467.80 : 105,789,701.70 = 59,189,059.80 : x
  2. Step 2: Convert to fraction form
    70,526,467.80/105,789,701.70 = 59,189,059.80/x
  3. Step 3: Cross multiply
    70,526,467.80x = 105,789,701.70 × 59,189,059.80
  4. Step 4: Simplify right side
    70,526,467.80x = 6,261,592,980,145,462
  5. Step 5: Solve for x
    x = 6,261,592,980,145,462/70,526,467.80
  6. Step 6: Final answer
    x = 88,783,589.70

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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.