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Finding the Fourth Proportional to 308,746.20, 463,119.30 and 121,733.40

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Solution

The fourth proportional to 308,746.20, 463,119.30 and 121,733.40 is: 182,600.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,746.20 : 463,119.30 = 121,733.40 : x
  2. Step 2: Convert to fraction form
    308,746.20/463,119.30 = 121,733.40/x
  3. Step 3: Cross multiply
    308,746.20x = 463,119.30 × 121,733.40
  4. Step 4: Simplify right side
    308,746.20x = 56,377,086,994.62
  5. Step 5: Solve for x
    x = 56,377,086,994.62/308,746.20
  6. Step 6: Final answer
    x = 182,600.10

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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.