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Finding the Third Proportional to 116,488 and 255,440

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Solution

The third proportional to 116,488 and 255,440 is: 560,140.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,488 : 255,440 = 255,440 : x
  2. Step 2: Convert to fraction form
    116,488/255,440 = 255,440/x
  3. Step 3: Cross multiply
    116,488x = 255,440 × 255,440
  4. Step 4: Simplify right side
    116,488x = 65,249,593,600
  5. Step 5: Solve for x
    x = 65,249,593,600/116,488
  6. Step 6: Final answer
    x = 560,140.05

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.