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Finding the Third Proportional to 77,415 and 170,053.88

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Solution

The third proportional to 77,415 and 170,053.88 is: 373,549.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,415 : 170,053.88 = 170,053.88 : x
  2. Step 2: Convert to fraction form
    77,415/170,053.88 = 170,053.88/x
  3. Step 3: Cross multiply
    77,415x = 170,053.88 × 170,053.88
  4. Step 4: Simplify right side
    77,415x = 28,918,320,402.52
  5. Step 5: Solve for x
    x = 28,918,320,402.52/77,415
  6. Step 6: Final answer
    x = 373,549.32

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.