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Finding the Third Proportional to 66,885,782.63 and 146,924,730.56

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Solution

The third proportional to 66,885,782.63 and 146,924,730.56 is: 322,742,376.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,885,782.63 : 146,924,730.56 = 146,924,730.56 : x
  2. Step 2: Convert to fraction form
    66,885,782.63/146,924,730.56 = 146,924,730.56/x
  3. Step 3: Cross multiply
    66,885,782.63x = 146,924,730.56 × 146,924,730.56
  4. Step 4: Simplify right side
    66,885,782.63x = 21,586,876,450,863,220
  5. Step 5: Solve for x
    x = 21,586,876,450,863,220/66,885,782.63
  6. Step 6: Final answer
    x = 322,742,376.69

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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.