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Finding the Fourth Proportional to 235,436.76, 353,198.58 and 77,676.12

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Solution

The fourth proportional to 235,436.76, 353,198.58 and 77,676.12 is: 116,528.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,436.76 : 353,198.58 = 77,676.12 : x
  2. Step 2: Convert to fraction form
    235,436.76/353,198.58 = 77,676.12/x
  3. Step 3: Cross multiply
    235,436.76x = 353,198.58 × 77,676.12
  4. Step 4: Simplify right side
    235,436.76x = 27,435,095,283.91
  5. Step 5: Solve for x
    x = 27,435,095,283.91/235,436.76
  6. Step 6: Final answer
    x = 116,528.51

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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.