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Finding the Fourth Proportional to 173,840.60, 260,696.10 and 68,637.80

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Solution

The fourth proportional to 173,840.60, 260,696.10 and 68,637.80 is: 102,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,840.60 : 260,696.10 = 68,637.80 : x
  2. Step 2: Convert to fraction form
    173,840.60/260,696.10 = 68,637.80/x
  3. Step 3: Cross multiply
    173,840.60x = 260,696.10 × 68,637.80
  4. Step 4: Simplify right side
    173,840.60x = 17,893,606,772.58
  5. Step 5: Solve for x
    x = 17,893,606,772.58/173,840.60
  6. Step 6: Final answer
    x = 102,931.11

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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.