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Finding the Fourth Proportional to 163,253,508.84, 225,289,842.28 and 89,914,650.84

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Solution

The fourth proportional to 163,253,508.84, 225,289,842.28 and 89,914,650.84 is: 124,082,218.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,253,508.84 : 225,289,842.28 = 89,914,650.84 : x
  2. Step 2: Convert to fraction form
    163,253,508.84/225,289,842.28 = 89,914,650.84/x
  3. Step 3: Cross multiply
    163,253,508.84x = 225,289,842.28 × 89,914,650.84
  4. Step 4: Simplify right side
    163,253,508.84x = 20,256,857,506,404,872
  5. Step 5: Solve for x
    x = 20,256,857,506,404,872/163,253,508.84
  6. Step 6: Final answer
    x = 124,082,218.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.