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Finding the Fourth Proportional to 188,856.79, 260,616.02 and 102,814.16

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Solution

The fourth proportional to 188,856.79, 260,616.02 and 102,814.16 is: 141,880.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,856.79 : 260,616.02 = 102,814.16 : x
  2. Step 2: Convert to fraction form
    188,856.79/260,616.02 = 102,814.16/x
  3. Step 3: Cross multiply
    188,856.79x = 260,616.02 × 102,814.16
  4. Step 4: Simplify right side
    188,856.79x = 26,795,015,361.69
  5. Step 5: Solve for x
    x = 26,795,015,361.69/188,856.79
  6. Step 6: Final answer
    x = 141,880.08

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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.