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Finding the Fourth Proportional to 530,906.90, 796,360.35 and 156,929.90

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Solution

The fourth proportional to 530,906.90, 796,360.35 and 156,929.90 is: 235,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,906.90 : 796,360.35 = 156,929.90 : x
  2. Step 2: Convert to fraction form
    530,906.90/796,360.35 = 156,929.90/x
  3. Step 3: Cross multiply
    530,906.90x = 796,360.35 × 156,929.90
  4. Step 4: Simplify right side
    530,906.90x = 124,972,750,089.47
  5. Step 5: Solve for x
    x = 124,972,750,089.47/530,906.90
  6. Step 6: Final answer
    x = 235,394.85

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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.