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Finding the Third Proportional to 90,870,712 and 140,973,135

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Solution

The third proportional to 90,870,712 and 140,973,135 is: 218,700,000.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,870,712 : 140,973,135 = 140,973,135 : x
  2. Step 2: Convert to fraction form
    90,870,712/140,973,135 = 140,973,135/x
  3. Step 3: Cross multiply
    90,870,712x = 140,973,135 × 140,973,135
  4. Step 4: Simplify right side
    90,870,712x = 19,873,424,791,728,224
  5. Step 5: Solve for x
    x = 19,873,424,791,728,224/90,870,712
  6. Step 6: Final answer
    x = 218,700,000.85

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.