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Finding the Fourth Proportional to 346,636.70, 519,953.64 and 109,997.80

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Solution

The fourth proportional to 346,636.70, 519,953.64 and 109,997.80 is: 164,996.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,636.70 : 519,953.64 = 109,997.80 : x
  2. Step 2: Convert to fraction form
    346,636.70/519,953.64 = 109,997.80/x
  3. Step 3: Cross multiply
    346,636.70x = 519,953.64 × 109,997.80
  4. Step 4: Simplify right side
    346,636.70x = 57,193,756,501.99
  5. Step 5: Solve for x
    x = 57,193,756,501.99/346,636.70
  6. Step 6: Final answer
    x = 164,996.25

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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.