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Finding the Fourth Proportional to 355,465.60, 532,996.80 and 144,856.96

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Solution

The fourth proportional to 355,465.60, 532,996.80 and 144,856.96 is: 217,203.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,465.60 : 532,996.80 = 144,856.96 : x
  2. Step 2: Convert to fraction form
    355,465.60/532,996.80 = 144,856.96/x
  3. Step 3: Cross multiply
    355,465.60x = 532,996.80 × 144,856.96
  4. Step 4: Simplify right side
    355,465.60x = 77,208,296,137.73
  5. Step 5: Solve for x
    x = 77,208,296,137.73/355,465.60
  6. Step 6: Final answer
    x = 217,203.29

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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.