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Finding the Fourth Proportional to 93,710.10, 140,597.55 and 90,470.10

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Solution

The fourth proportional to 93,710.10, 140,597.55 and 90,470.10 is: 135,736.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,710.10 : 140,597.55 = 90,470.10 : x
  2. Step 2: Convert to fraction form
    93,710.10/140,597.55 = 90,470.10/x
  3. Step 3: Cross multiply
    93,710.10x = 140,597.55 × 90,470.10
  4. Step 4: Simplify right side
    93,710.10x = 12,719,874,408.26
  5. Step 5: Solve for x
    x = 12,719,874,408.26/93,710.10
  6. Step 6: Final answer
    x = 135,736.43

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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.