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Finding the Third Proportional to 72,448 and 153,618

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Solution

The third proportional to 72,448 and 153,618 is: 325,730.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,448 : 153,618 = 153,618 : x
  2. Step 2: Convert to fraction form
    72,448/153,618 = 153,618/x
  3. Step 3: Cross multiply
    72,448x = 153,618 × 153,618
  4. Step 4: Simplify right side
    72,448x = 23,598,489,924
  5. Step 5: Solve for x
    x = 23,598,489,924/72,448
  6. Step 6: Final answer
    x = 325,730.04

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.