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Finding the Third Proportional to 77,554.13 and 124,429.50

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Solution

The third proportional to 77,554.13 and 124,429.50 is: 199,637.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,554.13 : 124,429.50 = 124,429.50 : x
  2. Step 2: Convert to fraction form
    77,554.13/124,429.50 = 124,429.50/x
  3. Step 3: Cross multiply
    77,554.13x = 124,429.50 × 124,429.50
  4. Step 4: Simplify right side
    77,554.13x = 15,482,700,470.25
  5. Step 5: Solve for x
    x = 15,482,700,470.25/77,554.13
  6. Step 6: Final answer
    x = 199,637.36

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.