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Finding the Fourth Proportional to 77,223.60, 115,835.40 and 32,851.80

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Solution

The fourth proportional to 77,223.60, 115,835.40 and 32,851.80 is: 49,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,223.60 : 115,835.40 = 32,851.80 : x
  2. Step 2: Convert to fraction form
    77,223.60/115,835.40 = 32,851.80/x
  3. Step 3: Cross multiply
    77,223.60x = 115,835.40 × 32,851.80
  4. Step 4: Simplify right side
    77,223.60x = 3,805,401,393.72
  5. Step 5: Solve for x
    x = 3,805,401,393.72/77,223.60
  6. Step 6: Final answer
    x = 49,277.70

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Why These Related Problems?

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