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Finding the Fourth Proportional to 73,369,705.60, 110,054,558.40 and 72,235,964.80

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Solution

The fourth proportional to 73,369,705.60, 110,054,558.40 and 72,235,964.80 is: 108,353,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,369,705.60 : 110,054,558.40 = 72,235,964.80 : x
  2. Step 2: Convert to fraction form
    73,369,705.60/110,054,558.40 = 72,235,964.80/x
  3. Step 3: Cross multiply
    73,369,705.60x = 110,054,558.40 × 72,235,964.80
  4. Step 4: Simplify right side
    73,369,705.60x = 7,949,897,206,661,944
  5. Step 5: Solve for x
    x = 7,949,897,206,661,944/73,369,705.60
  6. Step 6: Final answer
    x = 108,353,947.20

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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.