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Finding the Fourth Proportional to 163,930.60, 245,895.90 and 146,215.90

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Solution

The fourth proportional to 163,930.60, 245,895.90 and 146,215.90 is: 219,323.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,930.60 : 245,895.90 = 146,215.90 : x
  2. Step 2: Convert to fraction form
    163,930.60/245,895.90 = 146,215.90/x
  3. Step 3: Cross multiply
    163,930.60x = 245,895.90 × 146,215.90
  4. Step 4: Simplify right side
    163,930.60x = 35,953,890,324.81
  5. Step 5: Solve for x
    x = 35,953,890,324.81/163,930.60
  6. Step 6: Final answer
    x = 219,323.85

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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.