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Finding the Fourth Proportional to 154,493.40, 216,601.80 and 154,493.40

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Solution

The fourth proportional to 154,493.40, 216,601.80 and 154,493.40 is: 216,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,493.40 : 216,601.80 = 154,493.40 : x
  2. Step 2: Convert to fraction form
    154,493.40/216,601.80 = 154,493.40/x
  3. Step 3: Cross multiply
    154,493.40x = 216,601.80 × 154,493.40
  4. Step 4: Simplify right side
    154,493.40x = 33,463,548,528.12
  5. Step 5: Solve for x
    x = 33,463,548,528.12/154,493.40
  6. Step 6: Final answer
    x = 216,601.80

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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.