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Finding the Fourth Proportional to 154,612.40, 216,768.40 and 154,612.40

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Solution

The fourth proportional to 154,612.40, 216,768.40 and 154,612.40 is: 216,768.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,612.40 : 216,768.40 = 154,612.40 : x
  2. Step 2: Convert to fraction form
    154,612.40/216,768.40 = 154,612.40/x
  3. Step 3: Cross multiply
    154,612.40x = 216,768.40 × 154,612.40
  4. Step 4: Simplify right side
    154,612.40x = 33,515,082,568.16
  5. Step 5: Solve for x
    x = 33,515,082,568.16/154,612.40
  6. Step 6: Final answer
    x = 216,768.40

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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.