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Finding the Fourth Proportional to 260,348.84, 390,446.71 and 110,587.94

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Solution

The fourth proportional to 260,348.84, 390,446.71 and 110,587.94 is: 165,849.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,348.84 : 390,446.71 = 110,587.94 : x
  2. Step 2: Convert to fraction form
    260,348.84/390,446.71 = 110,587.94/x
  3. Step 3: Cross multiply
    260,348.84x = 390,446.71 × 110,587.94
  4. Step 4: Simplify right side
    260,348.84x = 43,178,697,338.68
  5. Step 5: Solve for x
    x = 43,178,697,338.68/260,348.84
  6. Step 6: Final answer
    x = 165,849.39

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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.