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Finding the Fourth Proportional to 202,176,231.20, 303,264,346.80 and 168,583,911.20

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Solution

The fourth proportional to 202,176,231.20, 303,264,346.80 and 168,583,911.20 is: 252,875,866.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,176,231.20 : 303,264,346.80 = 168,583,911.20 : x
  2. Step 2: Convert to fraction form
    202,176,231.20/303,264,346.80 = 168,583,911.20/x
  3. Step 3: Cross multiply
    202,176,231.20x = 303,264,346.80 × 168,583,911.20
  4. Step 4: Simplify right side
    202,176,231.20x = 51,125,489,711,057,200
  5. Step 5: Solve for x
    x = 51,125,489,711,057,200/202,176,231.20
  6. Step 6: Final answer
    x = 252,875,866.80

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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.