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Finding the Fourth Proportional to 357,787.70, 493,756.08 and 196,646.84

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Solution

The fourth proportional to 357,787.70, 493,756.08 and 196,646.84 is: 271,377.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,787.70 : 493,756.08 = 196,646.84 : x
  2. Step 2: Convert to fraction form
    357,787.70/493,756.08 = 196,646.84/x
  3. Step 3: Cross multiply
    357,787.70x = 493,756.08 × 196,646.84
  4. Step 4: Simplify right side
    357,787.70x = 97,095,572,862.79
  5. Step 5: Solve for x
    x = 97,095,572,862.79/357,787.70
  6. Step 6: Final answer
    x = 271,377.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.