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Finding the Third Proportional to 72,130 and 153,476

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Solution

The third proportional to 72,130 and 153,476 is: 326,561.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,130 : 153,476 = 153,476 : x
  2. Step 2: Convert to fraction form
    72,130/153,476 = 153,476/x
  3. Step 3: Cross multiply
    72,130x = 153,476 × 153,476
  4. Step 4: Simplify right side
    72,130x = 23,554,882,576
  5. Step 5: Solve for x
    x = 23,554,882,576/72,130
  6. Step 6: Final answer
    x = 326,561.52

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Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.