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Finding the Fourth Proportional to 141,011.87, 194,486.40 and 87,326.69

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Solution

The fourth proportional to 141,011.87, 194,486.40 and 87,326.69 is: 120,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,011.87 : 194,486.40 = 87,326.69 : x
  2. Step 2: Convert to fraction form
    141,011.87/194,486.40 = 87,326.69/x
  3. Step 3: Cross multiply
    141,011.87x = 194,486.40 × 87,326.69
  4. Step 4: Simplify right side
    141,011.87x = 16,983,852,589.58
  5. Step 5: Solve for x
    x = 16,983,852,589.58/141,011.87
  6. Step 6: Final answer
    x = 120,442.72

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1.5x scale

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.