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Finding the Fourth Proportional to 355,087.20, 532,632.84 and 118,429.20

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Solution

The fourth proportional to 355,087.20, 532,632.84 and 118,429.20 is: 177,644.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,087.20 : 532,632.84 = 118,429.20 : x
  2. Step 2: Convert to fraction form
    355,087.20/532,632.84 = 118,429.20/x
  3. Step 3: Cross multiply
    355,087.20x = 532,632.84 × 118,429.20
  4. Step 4: Simplify right side
    355,087.20x = 63,079,281,134.93
  5. Step 5: Solve for x
    x = 63,079,281,134.93/355,087.20
  6. Step 6: Final answer
    x = 177,644.48

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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.