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Finding the Fourth Proportional to 93,246.47, 139,991.64 and 55,364.88

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Solution

The fourth proportional to 93,246.47, 139,991.64 and 55,364.88 is: 83,119.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,246.47 : 139,991.64 = 55,364.88 : x
  2. Step 2: Convert to fraction form
    93,246.47/139,991.64 = 55,364.88/x
  3. Step 3: Cross multiply
    93,246.47x = 139,991.64 × 55,364.88
  4. Step 4: Simplify right side
    93,246.47x = 7,750,620,349.60
  5. Step 5: Solve for x
    x = 7,750,620,349.60/93,246.47
  6. Step 6: Final answer
    x = 83,119.72

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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.