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Finding the Fourth Proportional to 269,746.50, 404,639.20 and 103,534.50

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Solution

The fourth proportional to 269,746.50, 404,639.20 and 103,534.50 is: 155,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,746.50 : 404,639.20 = 103,534.50 : x
  2. Step 2: Convert to fraction form
    269,746.50/404,639.20 = 103,534.50/x
  3. Step 3: Cross multiply
    269,746.50x = 404,639.20 × 103,534.50
  4. Step 4: Simplify right side
    269,746.50x = 41,894,117,252.40
  5. Step 5: Solve for x
    x = 41,894,117,252.40/269,746.50
  6. Step 6: Final answer
    x = 155,309.22

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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.