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Finding the Fourth Proportional to 346,384.20, 519,649.20 and 109,750.80

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Solution

The fourth proportional to 346,384.20, 519,649.20 and 109,750.80 is: 164,649.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,384.20 : 519,649.20 = 109,750.80 : x
  2. Step 2: Convert to fraction form
    346,384.20/519,649.20 = 109,750.80/x
  3. Step 3: Cross multiply
    346,384.20x = 519,649.20 × 109,750.80
  4. Step 4: Simplify right side
    346,384.20x = 57,031,915,419.36
  5. Step 5: Solve for x
    x = 57,031,915,419.36/346,384.20
  6. Step 6: Final answer
    x = 164,649.30

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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.