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Finding the Fourth Proportional to 295,803.20, 443,753.40 and 127,404.20

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Solution

The fourth proportional to 295,803.20, 443,753.40 and 127,404.20 is: 191,127.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,803.20 : 443,753.40 = 127,404.20 : x
  2. Step 2: Convert to fraction form
    295,803.20/443,753.40 = 127,404.20/x
  3. Step 3: Cross multiply
    295,803.20x = 443,753.40 × 127,404.20
  4. Step 4: Simplify right side
    295,803.20x = 56,536,046,924.28
  5. Step 5: Solve for x
    x = 56,536,046,924.28/295,803.20
  6. Step 6: Final answer
    x = 191,127.23

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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.