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Finding the Fourth Proportional to 266,448.49, 367,658.76 and 151,731.46

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Solution

The fourth proportional to 266,448.49, 367,658.76 and 151,731.46 is: 209,366.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,448.49 : 367,658.76 = 151,731.46 : x
  2. Step 2: Convert to fraction form
    266,448.49/367,658.76 = 151,731.46/x
  3. Step 3: Cross multiply
    266,448.49x = 367,658.76 × 151,731.46
  4. Step 4: Simplify right side
    266,448.49x = 55,785,401,465.16
  5. Step 5: Solve for x
    x = 55,785,401,465.16/266,448.49
  6. Step 6: Final answer
    x = 209,366.55

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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.