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Finding the Fourth Proportional to 56,656.80, 84,985.20 and 50,095.80

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Solution

The fourth proportional to 56,656.80, 84,985.20 and 50,095.80 is: 75,143.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,656.80 : 84,985.20 = 50,095.80 : x
  2. Step 2: Convert to fraction form
    56,656.80/84,985.20 = 50,095.80/x
  3. Step 3: Cross multiply
    56,656.80x = 84,985.20 × 50,095.80
  4. Step 4: Simplify right side
    56,656.80x = 4,257,401,582.16
  5. Step 5: Solve for x
    x = 4,257,401,582.16/56,656.80
  6. Step 6: Final answer
    x = 75,143.70

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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.