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Finding the Fourth Proportional to 357,175.62, 535,390.83 and 120,436.92

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Solution

The fourth proportional to 357,175.62, 535,390.83 and 120,436.92 is: 180,529.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,175.62 : 535,390.83 = 120,436.92 : x
  2. Step 2: Convert to fraction form
    357,175.62/535,390.83 = 120,436.92/x
  3. Step 3: Cross multiply
    357,175.62x = 535,390.83 × 120,436.92
  4. Step 4: Simplify right side
    357,175.62x = 64,480,822,561.44
  5. Step 5: Solve for x
    x = 64,480,822,561.44/357,175.62
  6. Step 6: Final answer
    x = 180,529.74

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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.