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Finding the Fourth Proportional to 293,103.68, 439,638.51 and 113,153.88

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Solution

The fourth proportional to 293,103.68, 439,638.51 and 113,153.88 is: 169,724.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,103.68 : 439,638.51 = 113,153.88 : x
  2. Step 2: Convert to fraction form
    293,103.68/439,638.51 = 113,153.88/x
  3. Step 3: Cross multiply
    293,103.68x = 439,638.51 × 113,153.88
  4. Step 4: Simplify right side
    293,103.68x = 49,746,803,203.92
  5. Step 5: Solve for x
    x = 49,746,803,203.92/293,103.68
  6. Step 6: Final answer
    x = 169,724.25

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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.