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Finding the Fourth Proportional to 97,399.62, 134,411.76 and 52,687.62

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Solution

The fourth proportional to 97,399.62, 134,411.76 and 52,687.62 is: 72,709.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,399.62 : 134,411.76 = 52,687.62 : x
  2. Step 2: Convert to fraction form
    97,399.62/134,411.76 = 52,687.62/x
  3. Step 3: Cross multiply
    97,399.62x = 134,411.76 × 52,687.62
  4. Step 4: Simplify right side
    97,399.62x = 7,081,835,734.41
  5. Step 5: Solve for x
    x = 7,081,835,734.41/97,399.62
  6. Step 6: Final answer
    x = 72,709.07

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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.