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Finding the Third Proportional to 105,768 and 155,724

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Solution

The third proportional to 105,768 and 155,724 is: 229,275.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,768 : 155,724 = 155,724 : x
  2. Step 2: Convert to fraction form
    105,768/155,724 = 155,724/x
  3. Step 3: Cross multiply
    105,768x = 155,724 × 155,724
  4. Step 4: Simplify right side
    105,768x = 24,249,964,176
  5. Step 5: Solve for x
    x = 24,249,964,176/105,768
  6. Step 6: Final answer
    x = 229,275.06

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.