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Finding the Third Proportional to 86,290,386 and 185,387,844.50

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Solution

The third proportional to 86,290,386 and 185,387,844.50 is: 398,290,637.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,290,386 : 185,387,844.50 = 185,387,844.50 : x
  2. Step 2: Convert to fraction form
    86,290,386/185,387,844.50 = 185,387,844.50/x
  3. Step 3: Cross multiply
    86,290,386x = 185,387,844.50 × 185,387,844.50
  4. Step 4: Simplify right side
    86,290,386x = 34,368,652,888,356,180
  5. Step 5: Solve for x
    x = 34,368,652,888,356,180/86,290,386
  6. Step 6: Final answer
    x = 398,290,637.94

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Why These Related Problems?

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