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Finding the Fourth Proportional to 174,920.90, 262,510.95 and 69,815.30

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Solution

The fourth proportional to 174,920.90, 262,510.95 and 69,815.30 is: 104,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,920.90 : 262,510.95 = 69,815.30 : x
  2. Step 2: Convert to fraction form
    174,920.90/262,510.95 = 69,815.30/x
  3. Step 3: Cross multiply
    174,920.90x = 262,510.95 × 69,815.30
  4. Step 4: Simplify right side
    174,920.90x = 18,327,280,727.54
  5. Step 5: Solve for x
    x = 18,327,280,727.54/174,920.90
  6. Step 6: Final answer
    x = 104,774.68

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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.