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Finding the Fourth Proportional to 110,731.78, 152,809.41 and 60,430.78

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Solution

The fourth proportional to 110,731.78, 152,809.41 and 60,430.78 is: 83,394.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,731.78 : 152,809.41 = 60,430.78 : x
  2. Step 2: Convert to fraction form
    110,731.78/152,809.41 = 60,430.78/x
  3. Step 3: Cross multiply
    110,731.78x = 152,809.41 × 60,430.78
  4. Step 4: Simplify right side
    110,731.78x = 9,234,391,837.64
  5. Step 5: Solve for x
    x = 9,234,391,837.64/110,731.78
  6. Step 6: Final answer
    x = 83,394.23

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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.