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Finding the Fourth Proportional to 502,110.51, 753,171.86 and 147,131.73

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Solution

The fourth proportional to 502,110.51, 753,171.86 and 147,131.73 is: 220,699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,110.51 : 753,171.86 = 147,131.73 : x
  2. Step 2: Convert to fraction form
    502,110.51/753,171.86 = 147,131.73/x
  3. Step 3: Cross multiply
    502,110.51x = 753,171.86 × 147,131.73
  4. Step 4: Simplify right side
    502,110.51x = 110,815,478,013.46
  5. Step 5: Solve for x
    x = 110,815,478,013.46/502,110.51
  6. Step 6: Final answer
    x = 220,699.38

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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.