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Finding the Fourth Proportional to 435,369.86, 652,803.35 and 168,818.97

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Solution

The fourth proportional to 435,369.86, 652,803.35 and 168,818.97 is: 253,130.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,369.86 : 652,803.35 = 168,818.97 : x
  2. Step 2: Convert to fraction form
    435,369.86/652,803.35 = 168,818.97/x
  3. Step 3: Cross multiply
    435,369.86x = 652,803.35 × 168,818.97
  4. Step 4: Simplify right side
    435,369.86x = 110,205,589,159.55
  5. Step 5: Solve for x
    x = 110,205,589,159.55/435,369.86
  6. Step 6: Final answer
    x = 253,130.96

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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.