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Finding the Fourth Proportional to 70,812,087.60, 106,050,169.80 and 70,812,087.60

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Solution

The fourth proportional to 70,812,087.60, 106,050,169.80 and 70,812,087.60 is: 106,050,169.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,812,087.60 : 106,050,169.80 = 70,812,087.60 : x
  2. Step 2: Convert to fraction form
    70,812,087.60/106,050,169.80 = 70,812,087.60/x
  3. Step 3: Cross multiply
    70,812,087.60x = 106,050,169.80 × 70,812,087.60
  4. Step 4: Simplify right side
    70,812,087.60x = 7,509,633,913,872,474
  5. Step 5: Solve for x
    x = 7,509,633,913,872,474/70,812,087.60
  6. Step 6: Final answer
    x = 106,050,169.80

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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.