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Finding the Fourth Proportional to 355,899.62, 533,849.74 and 89,657.89

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Solution

The fourth proportional to 355,899.62, 533,849.74 and 89,657.89 is: 134,486.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,899.62 : 533,849.74 = 89,657.89 : x
  2. Step 2: Convert to fraction form
    355,899.62/533,849.74 = 89,657.89/x
  3. Step 3: Cross multiply
    355,899.62x = 533,849.74 × 89,657.89
  4. Step 4: Simplify right side
    355,899.62x = 47,863,839,706.68
  5. Step 5: Solve for x
    x = 47,863,839,706.68/355,899.62
  6. Step 6: Final answer
    x = 134,486.91

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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.