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Finding the Fourth Proportional to 93,477.78, 139,993.20 and 53,914.95

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Solution

The fourth proportional to 93,477.78, 139,993.20 and 53,914.95 is: 80,743.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,477.78 : 139,993.20 = 53,914.95 : x
  2. Step 2: Convert to fraction form
    93,477.78/139,993.20 = 53,914.95/x
  3. Step 3: Cross multiply
    93,477.78x = 139,993.20 × 53,914.95
  4. Step 4: Simplify right side
    93,477.78x = 7,547,726,378.34
  5. Step 5: Solve for x
    x = 7,547,726,378.34/93,477.78
  6. Step 6: Final answer
    x = 80,743.53

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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.