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Finding the Fourth Proportional to 93,175.80, 139,773.15 and 29,979.60

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Solution

The fourth proportional to 93,175.80, 139,773.15 and 29,979.60 is: 44,972.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,175.80 : 139,773.15 = 29,979.60 : x
  2. Step 2: Convert to fraction form
    93,175.80/139,773.15 = 29,979.60/x
  3. Step 3: Cross multiply
    93,175.80x = 139,773.15 × 29,979.60
  4. Step 4: Simplify right side
    93,175.80x = 4,190,343,127.74
  5. Step 5: Solve for x
    x = 4,190,343,127.74/93,175.80
  6. Step 6: Final answer
    x = 44,972.44

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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.