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Finding the Fourth Proportional to 173,990.82, 260,943.68 and 55,637.66

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Solution

The fourth proportional to 173,990.82, 260,943.68 and 55,637.66 is: 83,442.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,990.82 : 260,943.68 = 55,637.66 : x
  2. Step 2: Convert to fraction form
    173,990.82/260,943.68 = 55,637.66/x
  3. Step 3: Cross multiply
    173,990.82x = 260,943.68 × 55,637.66
  4. Step 4: Simplify right side
    173,990.82x = 14,518,295,746.99
  5. Step 5: Solve for x
    x = 14,518,295,746.99/173,990.82
  6. Step 6: Final answer
    x = 83,442.88

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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.