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Finding the Third Proportional to 72,812,150 and 156,429,984

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Solution

The third proportional to 72,812,150 and 156,429,984 is: 336,074,953.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,812,150 : 156,429,984 = 156,429,984 : x
  2. Step 2: Convert to fraction form
    72,812,150/156,429,984 = 156,429,984/x
  3. Step 3: Cross multiply
    72,812,150x = 156,429,984 × 156,429,984
  4. Step 4: Simplify right side
    72,812,150x = 24,470,339,894,240,256
  5. Step 5: Solve for x
    x = 24,470,339,894,240,256/72,812,150
  6. Step 6: Final answer
    x = 336,074,953.07

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These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.