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Finding the Fourth Proportional to 70,441,010.80, 98,415,861.20 and 70,441,010.80

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Solution

The fourth proportional to 70,441,010.80, 98,415,861.20 and 70,441,010.80 is: 98,415,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,441,010.80 : 98,415,861.20 = 70,441,010.80 : x
  2. Step 2: Convert to fraction form
    70,441,010.80/98,415,861.20 = 70,441,010.80/x
  3. Step 3: Cross multiply
    70,441,010.80x = 98,415,861.20 × 70,441,010.80
  4. Step 4: Simplify right side
    70,441,010.80x = 6,932,512,741,680,501
  5. Step 5: Solve for x
    x = 6,932,512,741,680,501/70,441,010.80
  6. Step 6: Final answer
    x = 98,415,861.20

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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.