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Finding the Fourth Proportional to 96,369.20, 144,575.40 and 29,812.40

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Solution

The fourth proportional to 96,369.20, 144,575.40 and 29,812.40 is: 44,725.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,369.20 : 144,575.40 = 29,812.40 : x
  2. Step 2: Convert to fraction form
    96,369.20/144,575.40 = 29,812.40/x
  3. Step 3: Cross multiply
    96,369.20x = 144,575.40 × 29,812.40
  4. Step 4: Simplify right side
    96,369.20x = 4,310,139,654.96
  5. Step 5: Solve for x
    x = 4,310,139,654.96/96,369.20
  6. Step 6: Final answer
    x = 44,725.28

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1.5x scale

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.