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Finding the Fourth Proportional to 146,411.20, 219,616.80 and 35,603.20

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Solution

The fourth proportional to 146,411.20, 219,616.80 and 35,603.20 is: 53,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,411.20 : 219,616.80 = 35,603.20 : x
  2. Step 2: Convert to fraction form
    146,411.20/219,616.80 = 35,603.20/x
  3. Step 3: Cross multiply
    146,411.20x = 219,616.80 × 35,603.20
  4. Step 4: Simplify right side
    146,411.20x = 7,819,060,853.76
  5. Step 5: Solve for x
    x = 7,819,060,853.76/146,411.20
  6. Step 6: Final answer
    x = 53,404.80

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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.