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Finding the Third Proportional to 72,558,531 and 157,871,160

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Solution

The third proportional to 72,558,531 and 157,871,160 is: 343,492,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,558,531 : 157,871,160 = 157,871,160 : x
  2. Step 2: Convert to fraction form
    72,558,531/157,871,160 = 157,871,160/x
  3. Step 3: Cross multiply
    72,558,531x = 157,871,160 × 157,871,160
  4. Step 4: Simplify right side
    72,558,531x = 24,923,303,159,745,600
  5. Step 5: Solve for x
    x = 24,923,303,159,745,600/72,558,531
  6. Step 6: Final answer
    x = 343,492,389.06

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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.