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Finding the Fourth Proportional to 119,883,346.20, 168,006,745.80 and 119,883,346.20

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Solution

The fourth proportional to 119,883,346.20, 168,006,745.80 and 119,883,346.20 is: 168,006,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,883,346.20 : 168,006,745.80 = 119,883,346.20 : x
  2. Step 2: Convert to fraction form
    119,883,346.20/168,006,745.80 = 119,883,346.20/x
  3. Step 3: Cross multiply
    119,883,346.20x = 168,006,745.80 × 119,883,346.20
  4. Step 4: Simplify right side
    119,883,346.20x = 20,141,210,870,676,796
  5. Step 5: Solve for x
    x = 20,141,210,870,676,796/119,883,346.20
  6. Step 6: Final answer
    x = 168,006,745.80

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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.