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Finding the Fourth Proportional to 70,969,905.60, 106,454,858.40 and 48,295,089.60

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Solution

The fourth proportional to 70,969,905.60, 106,454,858.40 and 48,295,089.60 is: 72,442,634.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,969,905.60 : 106,454,858.40 = 48,295,089.60 : x
  2. Step 2: Convert to fraction form
    70,969,905.60/106,454,858.40 = 48,295,089.60/x
  3. Step 3: Cross multiply
    70,969,905.60x = 106,454,858.40 × 48,295,089.60
  4. Step 4: Simplify right side
    70,969,905.60x = 5,141,246,924,783,313
  5. Step 5: Solve for x
    x = 5,141,246,924,783,313/70,969,905.60
  6. Step 6: Final answer
    x = 72,442,634.40

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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.