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Finding the Fourth Proportional to 93,214, 139,801.38 and 30,039.88

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Solution

The fourth proportional to 93,214, 139,801.38 and 30,039.88 is: 45,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,214 : 139,801.38 = 30,039.88 : x
  2. Step 2: Convert to fraction form
    93,214/139,801.38 = 30,039.88/x
  3. Step 3: Cross multiply
    93,214x = 139,801.38 × 30,039.88
  4. Step 4: Simplify right side
    93,214x = 4,199,616,679.03
  5. Step 5: Solve for x
    x = 4,199,616,679.03/93,214
  6. Step 6: Final answer
    x = 45,053.50

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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.