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Finding the Fourth Proportional to 134,088.60, 200,960.10 and 102,768.60

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Solution

The fourth proportional to 134,088.60, 200,960.10 and 102,768.60 is: 154,020.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,088.60 : 200,960.10 = 102,768.60 : x
  2. Step 2: Convert to fraction form
    134,088.60/200,960.10 = 102,768.60/x
  3. Step 3: Cross multiply
    134,088.60x = 200,960.10 × 102,768.60
  4. Step 4: Simplify right side
    134,088.60x = 20,652,388,132.86
  5. Step 5: Solve for x
    x = 20,652,388,132.86/134,088.60
  6. Step 6: Final answer
    x = 154,020.46

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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.