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Finding the Fourth Proportional to 179,573.76, 247,720.74 and 137,058.48

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Solution

The fourth proportional to 179,573.76, 247,720.74 and 137,058.48 is: 189,071.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,573.76 : 247,720.74 = 137,058.48 : x
  2. Step 2: Convert to fraction form
    179,573.76/247,720.74 = 137,058.48/x
  3. Step 3: Cross multiply
    179,573.76x = 247,720.74 × 137,058.48
  4. Step 4: Simplify right side
    179,573.76x = 33,952,228,088.88
  5. Step 5: Solve for x
    x = 33,952,228,088.88/179,573.76
  6. Step 6: Final answer
    x = 189,071.21

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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.