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Finding the Third Proportional to 72,558,540 and 157,871,176

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Solution

The third proportional to 72,558,540 and 157,871,176 is: 343,492,416.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,558,540 : 157,871,176 = 157,871,176 : x
  2. Step 2: Convert to fraction form
    72,558,540/157,871,176 = 157,871,176/x
  3. Step 3: Cross multiply
    72,558,540x = 157,871,176 × 157,871,176
  4. Step 4: Simplify right side
    72,558,540x = 24,923,308,211,622,976
  5. Step 5: Solve for x
    x = 24,923,308,211,622,976/72,558,540
  6. Step 6: Final answer
    x = 343,492,416.08

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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.