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Finding the Fourth Proportional to 356,331.88, 534,498.36 and 146,117.44

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Solution

The fourth proportional to 356,331.88, 534,498.36 and 146,117.44 is: 219,176.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,331.88 : 534,498.36 = 146,117.44 : x
  2. Step 2: Convert to fraction form
    356,331.88/534,498.36 = 146,117.44/x
  3. Step 3: Cross multiply
    356,331.88x = 534,498.36 × 146,117.44
  4. Step 4: Simplify right side
    356,331.88x = 78,099,532,047.40
  5. Step 5: Solve for x
    x = 78,099,532,047.40/356,331.88
  6. Step 6: Final answer
    x = 219,176.38

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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.