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Finding the Third Proportional to 90,172,888.03 and 196,947,763.88

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Solution

The third proportional to 90,172,888.03 and 196,947,763.88 is: 430,156,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,172,888.03 : 196,947,763.88 = 196,947,763.88 : x
  2. Step 2: Convert to fraction form
    90,172,888.03/196,947,763.88 = 196,947,763.88/x
  3. Step 3: Cross multiply
    90,172,888.03x = 196,947,763.88 × 196,947,763.88
  4. Step 4: Simplify right side
    90,172,888.03x = 38,788,421,695,362,752
  5. Step 5: Solve for x
    x = 38,788,421,695,362,752/90,172,888.03
  6. Step 6: Final answer
    x = 430,156,142.74

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.