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Finding the Fourth Proportional to 239,117.80, 358,676.70 and 164,468.20

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Solution

The fourth proportional to 239,117.80, 358,676.70 and 164,468.20 is: 246,702.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,117.80 : 358,676.70 = 164,468.20 : x
  2. Step 2: Convert to fraction form
    239,117.80/358,676.70 = 164,468.20/x
  3. Step 3: Cross multiply
    239,117.80x = 358,676.70 × 164,468.20
  4. Step 4: Simplify right side
    239,117.80x = 58,990,911,230.94
  5. Step 5: Solve for x
    x = 58,990,911,230.94/239,117.80
  6. Step 6: Final answer
    x = 246,702.30

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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.