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Finding the Fourth Proportional to 129,885.68, 194,671.68 and 63,225.92

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Solution

The fourth proportional to 129,885.68, 194,671.68 and 63,225.92 is: 94,762.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,885.68 : 194,671.68 = 63,225.92 : x
  2. Step 2: Convert to fraction form
    129,885.68/194,671.68 = 63,225.92/x
  3. Step 3: Cross multiply
    129,885.68x = 194,671.68 × 63,225.92
  4. Step 4: Simplify right side
    129,885.68x = 12,308,296,065.95
  5. Step 5: Solve for x
    x = 12,308,296,065.95/129,885.68
  6. Step 6: Final answer
    x = 94,762.53

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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.