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Finding the Fourth Proportional to 173,883.60, 260,837.55 and 68,688.90

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Solution

The fourth proportional to 173,883.60, 260,837.55 and 68,688.90 is: 103,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,883.60 : 260,837.55 = 68,688.90 : x
  2. Step 2: Convert to fraction form
    173,883.60/260,837.55 = 68,688.90/x
  3. Step 3: Cross multiply
    173,883.60x = 260,837.55 × 68,688.90
  4. Step 4: Simplify right side
    173,883.60x = 17,916,644,388.20
  5. Step 5: Solve for x
    x = 17,916,644,388.20/173,883.60
  6. Step 6: Final answer
    x = 103,038.15

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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.