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Finding the Fourth Proportional to 235,411.20, 352,598.40 and 164,908.80

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Solution

The fourth proportional to 235,411.20, 352,598.40 and 164,908.80 is: 247,000.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,411.20 : 352,598.40 = 164,908.80 : x
  2. Step 2: Convert to fraction form
    235,411.20/352,598.40 = 164,908.80/x
  3. Step 3: Cross multiply
    235,411.20x = 352,598.40 × 164,908.80
  4. Step 4: Simplify right side
    235,411.20x = 58,146,579,025.92
  5. Step 5: Solve for x
    x = 58,146,579,025.92/235,411.20
  6. Step 6: Final answer
    x = 247,000.05

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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.