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Finding the Third Proportional to 39,623,421 and 86,281,168.50

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Solution

The third proportional to 39,623,421 and 86,281,168.50 is: 187,879,790.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,623,421 : 86,281,168.50 = 86,281,168.50 : x
  2. Step 2: Convert to fraction form
    39,623,421/86,281,168.50 = 86,281,168.50/x
  3. Step 3: Cross multiply
    39,623,421x = 86,281,168.50 × 86,281,168.50
  4. Step 4: Simplify right side
    39,623,421x = 7,444,440,037,725,392
  5. Step 5: Solve for x
    x = 7,444,440,037,725,392/39,623,421
  6. Step 6: Final answer
    x = 187,879,790.53

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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.