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Finding the Fourth Proportional to 354,621.60, 532,126.80 and 144,410.40

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Solution

The fourth proportional to 354,621.60, 532,126.80 and 144,410.40 is: 216,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,621.60 : 532,126.80 = 144,410.40 : x
  2. Step 2: Convert to fraction form
    354,621.60/532,126.80 = 144,410.40/x
  3. Step 3: Cross multiply
    354,621.60x = 532,126.80 × 144,410.40
  4. Step 4: Simplify right side
    354,621.60x = 76,844,644,038.72
  5. Step 5: Solve for x
    x = 76,844,644,038.72/354,621.60
  6. Step 6: Final answer
    x = 216,694.76

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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.