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Finding the Fourth Proportional to 163,906.60, 245,535.90 and 144,423.40

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Solution

The fourth proportional to 163,906.60, 245,535.90 and 144,423.40 is: 216,349.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,906.60 : 245,535.90 = 144,423.40 : x
  2. Step 2: Convert to fraction form
    163,906.60/245,535.90 = 144,423.40/x
  3. Step 3: Cross multiply
    163,906.60x = 245,535.90 × 144,423.40
  4. Step 4: Simplify right side
    163,906.60x = 35,461,129,500.06
  5. Step 5: Solve for x
    x = 35,461,129,500.06/163,906.60
  6. Step 6: Final answer
    x = 216,349.61

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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.