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Finding the Third Proportional to 239,132.25 and 357,421.50

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Solution

The third proportional to 239,132.25 and 357,421.50 is: 534,223.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,132.25 : 357,421.50 = 357,421.50 : x
  2. Step 2: Convert to fraction form
    239,132.25/357,421.50 = 357,421.50/x
  3. Step 3: Cross multiply
    239,132.25x = 357,421.50 × 357,421.50
  4. Step 4: Simplify right side
    239,132.25x = 127,750,128,662.25
  5. Step 5: Solve for x
    x = 127,750,128,662.25/239,132.25
  6. Step 6: Final answer
    x = 534,223.76

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.