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Finding the Third Proportional to 178,362,117.75 and 391,799,334.75

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Solution

The third proportional to 178,362,117.75 and 391,799,334.75 is: 860,646,423.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,362,117.75 : 391,799,334.75 = 391,799,334.75 : x
  2. Step 2: Convert to fraction form
    178,362,117.75/391,799,334.75 = 391,799,334.75/x
  3. Step 3: Cross multiply
    178,362,117.75x = 391,799,334.75 × 391,799,334.75
  4. Step 4: Simplify right side
    178,362,117.75x = 153,506,718,710,542,560
  5. Step 5: Solve for x
    x = 153,506,718,710,542,560/178,362,117.75
  6. Step 6: Final answer
    x = 860,646,423.39

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.