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Finding the Fourth Proportional to 235,748.64, 353,676.42 and 77,976.84

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Solution

The fourth proportional to 235,748.64, 353,676.42 and 77,976.84 is: 116,982.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,748.64 : 353,676.42 = 77,976.84 : x
  2. Step 2: Convert to fraction form
    235,748.64/353,676.42 = 77,976.84/x
  3. Step 3: Cross multiply
    235,748.64x = 353,676.42 × 77,976.84
  4. Step 4: Simplify right side
    235,748.64x = 27,578,569,614.11
  5. Step 5: Solve for x
    x = 27,578,569,614.11/235,748.64
  6. Step 6: Final answer
    x = 116,982.94

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1.5x scale

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.