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Finding the Fourth Proportional to 93,297.60, 139,949.64 and 30,117.60

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Solution

The fourth proportional to 93,297.60, 139,949.64 and 30,117.60 is: 45,177.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,297.60 : 139,949.64 = 30,117.60 : x
  2. Step 2: Convert to fraction form
    93,297.60/139,949.64 = 30,117.60/x
  3. Step 3: Cross multiply
    93,297.60x = 139,949.64 × 30,117.60
  4. Step 4: Simplify right side
    93,297.60x = 4,214,947,277.66
  5. Step 5: Solve for x
    x = 4,214,947,277.66/93,297.60
  6. Step 6: Final answer
    x = 45,177.45

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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.