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Finding the Fourth Proportional to 266,871.84, 400,765.80 and 236,953.68

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Solution

The fourth proportional to 266,871.84, 400,765.80 and 236,953.68 is: 355,837.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,871.84 : 400,765.80 = 236,953.68 : x
  2. Step 2: Convert to fraction form
    266,871.84/400,765.80 = 236,953.68/x
  3. Step 3: Cross multiply
    266,871.84x = 400,765.80 × 236,953.68
  4. Step 4: Simplify right side
    266,871.84x = 94,962,931,128.14
  5. Step 5: Solve for x
    x = 94,962,931,128.14/266,871.84
  6. Step 6: Final answer
    x = 355,837.21

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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.