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Finding the Fourth Proportional to 356,916.84, 535,265.88 and 120,195.96

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Solution

The fourth proportional to 356,916.84, 535,265.88 and 120,195.96 is: 180,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,916.84 : 535,265.88 = 120,195.96 : x
  2. Step 2: Convert to fraction form
    356,916.84/535,265.88 = 120,195.96/x
  3. Step 3: Cross multiply
    356,916.84x = 535,265.88 × 120,195.96
  4. Step 4: Simplify right side
    356,916.84x = 64,336,796,301.84
  5. Step 5: Solve for x
    x = 64,336,796,301.84/356,916.84
  6. Step 6: Final answer
    x = 180,257.10

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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.