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Finding the Fourth Proportional to 129,730.62, 194,595.93 and 59,668.86

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Solution

The fourth proportional to 129,730.62, 194,595.93 and 59,668.86 is: 89,503.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,730.62 : 194,595.93 = 59,668.86 : x
  2. Step 2: Convert to fraction form
    129,730.62/194,595.93 = 59,668.86/x
  3. Step 3: Cross multiply
    129,730.62x = 194,595.93 × 59,668.86
  4. Step 4: Simplify right side
    129,730.62x = 11,611,317,303.74
  5. Step 5: Solve for x
    x = 11,611,317,303.74/129,730.62
  6. Step 6: Final answer
    x = 89,503.29

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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.