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Finding the Fourth Proportional to 154,062.40, 215,998.40 and 154,062.40

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Solution

The fourth proportional to 154,062.40, 215,998.40 and 154,062.40 is: 215,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,062.40 : 215,998.40 = 154,062.40 : x
  2. Step 2: Convert to fraction form
    154,062.40/215,998.40 = 154,062.40/x
  3. Step 3: Cross multiply
    154,062.40x = 215,998.40 × 154,062.40
  4. Step 4: Simplify right side
    154,062.40x = 33,277,231,900.16
  5. Step 5: Solve for x
    x = 33,277,231,900.16/154,062.40
  6. Step 6: Final answer
    x = 215,998.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.