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Finding the Fourth Proportional to 163,806.72, 245,545.92 and 104,709.12

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Solution

The fourth proportional to 163,806.72, 245,545.92 and 104,709.12 is: 156,958.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,806.72 : 245,545.92 = 104,709.12 : x
  2. Step 2: Convert to fraction form
    163,806.72/245,545.92 = 104,709.12/x
  3. Step 3: Cross multiply
    163,806.72x = 245,545.92 × 104,709.12
  4. Step 4: Simplify right side
    163,806.72x = 25,710,897,202.79
  5. Step 5: Solve for x
    x = 25,710,897,202.79/163,806.72
  6. Step 6: Final answer
    x = 156,958.75

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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.