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Finding the Fourth Proportional to 266,443.64, 367,855.12 and 173,398.02

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Solution

The fourth proportional to 266,443.64, 367,855.12 and 173,398.02 is: 239,395.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,443.64 : 367,855.12 = 173,398.02 : x
  2. Step 2: Convert to fraction form
    266,443.64/367,855.12 = 173,398.02/x
  3. Step 3: Cross multiply
    266,443.64x = 367,855.12 × 173,398.02
  4. Step 4: Simplify right side
    266,443.64x = 63,785,349,454.86
  5. Step 5: Solve for x
    x = 63,785,349,454.86/266,443.64
  6. Step 6: Final answer
    x = 239,395.28

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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.