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Finding the Fourth Proportional to 156,582.29, 216,139.59 and 92,920.08

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Solution

The fourth proportional to 156,582.29, 216,139.59 and 92,920.08 is: 128,262.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,582.29 : 216,139.59 = 92,920.08 : x
  2. Step 2: Convert to fraction form
    156,582.29/216,139.59 = 92,920.08/x
  3. Step 3: Cross multiply
    156,582.29x = 216,139.59 × 92,920.08
  4. Step 4: Simplify right side
    156,582.29x = 20,083,707,993.97
  5. Step 5: Solve for x
    x = 20,083,707,993.97/156,582.29
  6. Step 6: Final answer
    x = 128,262.96

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.