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Finding the Fourth Proportional to 129,416.61, 194,086.61 and 58,298.14

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Solution

The fourth proportional to 129,416.61, 194,086.61 and 58,298.14 is: 87,429.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,416.61 : 194,086.61 = 58,298.14 : x
  2. Step 2: Convert to fraction form
    129,416.61/194,086.61 = 58,298.14/x
  3. Step 3: Cross multiply
    129,416.61x = 194,086.61 × 58,298.14
  4. Step 4: Simplify right side
    129,416.61x = 11,314,888,361.91
  5. Step 5: Solve for x
    x = 11,314,888,361.91/129,416.61
  6. Step 6: Final answer
    x = 87,429.95

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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.