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Finding the Fourth Proportional to 154,507.80, 216,933 and 154,507.80

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Solution

The fourth proportional to 154,507.80, 216,933 and 154,507.80 is: 216,933

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,507.80 : 216,933 = 154,507.80 : x
  2. Step 2: Convert to fraction form
    154,507.80/216,933 = 154,507.80/x
  3. Step 3: Cross multiply
    154,507.80x = 216,933 × 154,507.80
  4. Step 4: Simplify right side
    154,507.80x = 33,517,840,577.40
  5. Step 5: Solve for x
    x = 33,517,840,577.40/154,507.80
  6. Step 6: Final answer
    x = 216,933

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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.