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Finding the Fourth Proportional to 501,980.72, 753,063.48 and 165,040.40

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Solution

The fourth proportional to 501,980.72, 753,063.48 and 165,040.40 is: 247,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,980.72 : 753,063.48 = 165,040.40 : x
  2. Step 2: Convert to fraction form
    501,980.72/753,063.48 = 165,040.40/x
  3. Step 3: Cross multiply
    501,980.72x = 753,063.48 × 165,040.40
  4. Step 4: Simplify right side
    501,980.72x = 124,285,897,964.59
  5. Step 5: Solve for x
    x = 124,285,897,964.59/501,980.72
  6. Step 6: Final answer
    x = 247,590.98

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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.