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Finding the Fourth Proportional to 435,659.32, 653,529.35 and 169,439.86

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Solution

The fourth proportional to 435,659.32, 653,529.35 and 169,439.86 is: 254,175.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,659.32 : 653,529.35 = 169,439.86 : x
  2. Step 2: Convert to fraction form
    435,659.32/653,529.35 = 169,439.86/x
  3. Step 3: Cross multiply
    435,659.32x = 653,529.35 × 169,439.86
  4. Step 4: Simplify right side
    435,659.32x = 110,733,921,569.89
  5. Step 5: Solve for x
    x = 110,733,921,569.89/435,659.32
  6. Step 6: Final answer
    x = 254,175.49

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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.