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Finding the Fourth Proportional to 219,008.10, 328,512.15 and 151,356.90

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Solution

The fourth proportional to 219,008.10, 328,512.15 and 151,356.90 is: 227,035.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,008.10 : 328,512.15 = 151,356.90 : x
  2. Step 2: Convert to fraction form
    219,008.10/328,512.15 = 151,356.90/x
  3. Step 3: Cross multiply
    219,008.10x = 328,512.15 × 151,356.90
  4. Step 4: Simplify right side
    219,008.10x = 49,722,580,636.34
  5. Step 5: Solve for x
    x = 49,722,580,636.34/219,008.10
  6. Step 6: Final answer
    x = 227,035.35

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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.