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Finding the Third Proportional to 124,355 and 266,440

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Solution

The third proportional to 124,355 and 266,440 is: 570,867.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,355 : 266,440 = 266,440 : x
  2. Step 2: Convert to fraction form
    124,355/266,440 = 266,440/x
  3. Step 3: Cross multiply
    124,355x = 266,440 × 266,440
  4. Step 4: Simplify right side
    124,355x = 70,990,273,600
  5. Step 5: Solve for x
    x = 70,990,273,600/124,355
  6. Step 6: Final answer
    x = 570,867.87

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.