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Finding the Fourth Proportional to 283,592.63, 391,366.06 and 156,276.42

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Solution

The fourth proportional to 283,592.63, 391,366.06 and 156,276.42 is: 215,666.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,592.63 : 391,366.06 = 156,276.42 : x
  2. Step 2: Convert to fraction form
    283,592.63/391,366.06 = 156,276.42/x
  3. Step 3: Cross multiply
    283,592.63x = 391,366.06 × 156,276.42
  4. Step 4: Simplify right side
    283,592.63x = 61,161,286,375.61
  5. Step 5: Solve for x
    x = 61,161,286,375.61/283,592.63
  6. Step 6: Final answer
    x = 215,666.00

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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.