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Finding the Fourth Proportional to 269,588.71, 404,434.91 and 103,363.75

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Solution

The fourth proportional to 269,588.71, 404,434.91 and 103,363.75 is: 155,065.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,588.71 : 404,434.91 = 103,363.75 : x
  2. Step 2: Convert to fraction form
    269,588.71/404,434.91 = 103,363.75/x
  3. Step 3: Cross multiply
    269,588.71x = 404,434.91 × 103,363.75
  4. Step 4: Simplify right side
    269,588.71x = 41,803,908,928.51
  5. Step 5: Solve for x
    x = 41,803,908,928.51/269,588.71
  6. Step 6: Final answer
    x = 155,065.50

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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.