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Finding the Fourth Proportional to 163,500.88, 245,345.46 and 68,722.96

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Solution

The fourth proportional to 163,500.88, 245,345.46 and 68,722.96 is: 103,124.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,500.88 : 245,345.46 = 68,722.96 : x
  2. Step 2: Convert to fraction form
    163,500.88/245,345.46 = 68,722.96/x
  3. Step 3: Cross multiply
    163,500.88x = 245,345.46 × 68,722.96
  4. Step 4: Simplify right side
    163,500.88x = 16,860,866,233.76
  5. Step 5: Solve for x
    x = 16,860,866,233.76/163,500.88
  6. Step 6: Final answer
    x = 103,124.01

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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.