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Finding the Fourth Proportional to 389,068.10, 583,278.15 and 164,600.90

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Solution

The fourth proportional to 389,068.10, 583,278.15 and 164,600.90 is: 246,764.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,068.10 : 583,278.15 = 164,600.90 : x
  2. Step 2: Convert to fraction form
    389,068.10/583,278.15 = 164,600.90/x
  3. Step 3: Cross multiply
    389,068.10x = 583,278.15 × 164,600.90
  4. Step 4: Simplify right side
    389,068.10x = 96,008,108,440.34
  5. Step 5: Solve for x
    x = 96,008,108,440.34/389,068.10
  6. Step 6: Final answer
    x = 246,764.28

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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.