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Finding the Fourth Proportional to 124,823,806.80, 186,870,756.60 and 88,991,998.80

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Solution

The fourth proportional to 124,823,806.80, 186,870,756.60 and 88,991,998.80 is: 133,227,807.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,823,806.80 : 186,870,756.60 = 88,991,998.80 : x
  2. Step 2: Convert to fraction form
    124,823,806.80/186,870,756.60 = 88,991,998.80/x
  3. Step 3: Cross multiply
    124,823,806.80x = 186,870,756.60 × 88,991,998.80
  4. Step 4: Simplify right side
    124,823,806.80x = 16,630,002,147,102,290
  5. Step 5: Solve for x
    x = 16,630,002,147,102,290/124,823,806.80
  6. Step 6: Final answer
    x = 133,227,807.85

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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.