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Finding the Fourth Proportional to 93,347.46, 128,827.20 and 53,073.90

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Solution

The fourth proportional to 93,347.46, 128,827.20 and 53,073.90 is: 73,246.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,347.46 : 128,827.20 = 53,073.90 : x
  2. Step 2: Convert to fraction form
    93,347.46/128,827.20 = 53,073.90/x
  3. Step 3: Cross multiply
    93,347.46x = 128,827.20 × 53,073.90
  4. Step 4: Simplify right side
    93,347.46x = 6,837,361,930.08
  5. Step 5: Solve for x
    x = 6,837,361,930.08/93,347.46
  6. Step 6: Final answer
    x = 73,246.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.