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Finding the Fourth Proportional to 189,680.76, 261,737.14 and 104,792.76

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Solution

The fourth proportional to 189,680.76, 261,737.14 and 104,792.76 is: 144,601.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,680.76 : 261,737.14 = 104,792.76 : x
  2. Step 2: Convert to fraction form
    189,680.76/261,737.14 = 104,792.76/x
  3. Step 3: Cross multiply
    189,680.76x = 261,737.14 × 104,792.76
  4. Step 4: Simplify right side
    189,680.76x = 27,428,157,295.11
  5. Step 5: Solve for x
    x = 27,428,157,295.11/189,680.76
  6. Step 6: Final answer
    x = 144,601.68

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1.5x scale

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.