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Finding the Fourth Proportional to 173,898.10, 260,859.30 and 68,703.40

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Solution

The fourth proportional to 173,898.10, 260,859.30 and 68,703.40 is: 103,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,898.10 : 260,859.30 = 68,703.40 : x
  2. Step 2: Convert to fraction form
    173,898.10/260,859.30 = 68,703.40/x
  3. Step 3: Cross multiply
    173,898.10x = 260,859.30 × 68,703.40
  4. Step 4: Simplify right side
    173,898.10x = 17,921,920,831.62
  5. Step 5: Solve for x
    x = 17,921,920,831.62/173,898.10
  6. Step 6: Final answer
    x = 103,059.90

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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.