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Finding the Fourth Proportional to 56,223.60, 84,335.40 and 50,780.40

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Solution

The fourth proportional to 56,223.60, 84,335.40 and 50,780.40 is: 76,170.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,223.60 : 84,335.40 = 50,780.40 : x
  2. Step 2: Convert to fraction form
    56,223.60/84,335.40 = 50,780.40/x
  3. Step 3: Cross multiply
    56,223.60x = 84,335.40 × 50,780.40
  4. Step 4: Simplify right side
    56,223.60x = 4,282,585,346.16
  5. Step 5: Solve for x
    x = 4,282,585,346.16/56,223.60
  6. Step 6: Final answer
    x = 76,170.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.