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Finding the Fourth Proportional to 266,657.59, 368,080.10 and 153,525.43

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Solution

The fourth proportional to 266,657.59, 368,080.10 and 153,525.43 is: 211,918.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,657.59 : 368,080.10 = 153,525.43 : x
  2. Step 2: Convert to fraction form
    266,657.59/368,080.10 = 153,525.43/x
  3. Step 3: Cross multiply
    266,657.59x = 368,080.10 × 153,525.43
  4. Step 4: Simplify right side
    266,657.59x = 56,509,655,626.94
  5. Step 5: Solve for x
    x = 56,509,655,626.94/266,657.59
  6. Step 6: Final answer
    x = 211,918.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.