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Finding the Fourth Proportional to 266,063.68, 399,094.40 and 108,254.72

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Solution

The fourth proportional to 266,063.68, 399,094.40 and 108,254.72 is: 162,381.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,063.68 : 399,094.40 = 108,254.72 : x
  2. Step 2: Convert to fraction form
    266,063.68/399,094.40 = 108,254.72/x
  3. Step 3: Cross multiply
    266,063.68x = 399,094.40 × 108,254.72
  4. Step 4: Simplify right side
    266,063.68x = 43,203,852,525.57
  5. Step 5: Solve for x
    x = 43,203,852,525.57/266,063.68
  6. Step 6: Final answer
    x = 162,381.62

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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.