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Finding the Third Proportional to 164,862,985.50 and 255,041,905.50

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Solution

The third proportional to 164,862,985.50 and 255,041,905.50 is: 394,548,074.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,862,985.50 : 255,041,905.50 = 255,041,905.50 : x
  2. Step 2: Convert to fraction form
    164,862,985.50/255,041,905.50 = 255,041,905.50/x
  3. Step 3: Cross multiply
    164,862,985.50x = 255,041,905.50 × 255,041,905.50
  4. Step 4: Simplify right side
    164,862,985.50x = 65,046,373,561,070,928
  5. Step 5: Solve for x
    x = 65,046,373,561,070,928/164,862,985.50
  6. Step 6: Final answer
    x = 394,548,074.96

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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.