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Finding the Fourth Proportional to 266,013.68, 399,080.64 and 88,527.68

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Solution

The fourth proportional to 266,013.68, 399,080.64 and 88,527.68 is: 132,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,013.68 : 399,080.64 = 88,527.68 : x
  2. Step 2: Convert to fraction form
    266,013.68/399,080.64 = 88,527.68/x
  3. Step 3: Cross multiply
    266,013.68x = 399,080.64 × 88,527.68
  4. Step 4: Simplify right side
    266,013.68x = 35,329,683,192.12
  5. Step 5: Solve for x
    x = 35,329,683,192.12/266,013.68
  6. Step 6: Final answer
    x = 132,811.53

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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.