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Finding the Fourth Proportional to 173,815.30, 260,722.95 and 138,823.30

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Solution

The fourth proportional to 173,815.30, 260,722.95 and 138,823.30 is: 208,234.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,815.30 : 260,722.95 = 138,823.30 : x
  2. Step 2: Convert to fraction form
    173,815.30/260,722.95 = 138,823.30/x
  3. Step 3: Cross multiply
    173,815.30x = 260,722.95 × 138,823.30
  4. Step 4: Simplify right side
    173,815.30x = 36,194,420,304.74
  5. Step 5: Solve for x
    x = 36,194,420,304.74/173,815.30
  6. Step 6: Final answer
    x = 208,234.95

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1.5x scale

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.