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Finding the Third Proportional to 105,142 and 157,557

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Solution

The third proportional to 105,142 and 157,557 is: 236,101.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,142 : 157,557 = 157,557 : x
  2. Step 2: Convert to fraction form
    105,142/157,557 = 157,557/x
  3. Step 3: Cross multiply
    105,142x = 157,557 × 157,557
  4. Step 4: Simplify right side
    105,142x = 24,824,208,249
  5. Step 5: Solve for x
    x = 24,824,208,249/105,142
  6. Step 6: Final answer
    x = 236,101.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.