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Finding the Fourth Proportional to 352,855.28, 529,291.56 and 103,545.20

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Solution

The fourth proportional to 352,855.28, 529,291.56 and 103,545.20 is: 155,320.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,855.28 : 529,291.56 = 103,545.20 : x
  2. Step 2: Convert to fraction form
    352,855.28/529,291.56 = 103,545.20/x
  3. Step 3: Cross multiply
    352,855.28x = 529,291.56 × 103,545.20
  4. Step 4: Simplify right side
    352,855.28x = 54,805,600,438.51
  5. Step 5: Solve for x
    x = 54,805,600,438.51/352,855.28
  6. Step 6: Final answer
    x = 155,320.34

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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.