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Finding the Fourth Proportional to 341,981.10, 512,194.05 and 216,009.90

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Solution

The fourth proportional to 341,981.10, 512,194.05 and 216,009.90 is: 323,523.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,981.10 : 512,194.05 = 216,009.90 : x
  2. Step 2: Convert to fraction form
    341,981.10/512,194.05 = 216,009.90/x
  3. Step 3: Cross multiply
    341,981.10x = 512,194.05 × 216,009.90
  4. Step 4: Simplify right side
    341,981.10x = 110,638,985,521.10
  5. Step 5: Solve for x
    x = 110,638,985,521.10/341,981.10
  6. Step 6: Final answer
    x = 323,523.68

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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.