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Finding the Fourth Proportional to 154,141.92, 231,114.36 and 114,185.40

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Solution

The fourth proportional to 154,141.92, 231,114.36 and 114,185.40 is: 171,205.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,141.92 : 231,114.36 = 114,185.40 : x
  2. Step 2: Convert to fraction form
    154,141.92/231,114.36 = 114,185.40/x
  3. Step 3: Cross multiply
    154,141.92x = 231,114.36 × 114,185.40
  4. Step 4: Simplify right side
    154,141.92x = 26,389,885,642.34
  5. Step 5: Solve for x
    x = 26,389,885,642.34/154,141.92
  6. Step 6: Final answer
    x = 171,205.12

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1.5x scale

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.