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Finding the Fourth Proportional to 217,957.02, 325,028.17 and 215,964.01

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Solution

The fourth proportional to 217,957.02, 325,028.17 and 215,964.01 is: 322,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,957.02 : 325,028.17 = 215,964.01 : x
  2. Step 2: Convert to fraction form
    217,957.02/325,028.17 = 215,964.01/x
  3. Step 3: Cross multiply
    217,957.02x = 325,028.17 × 215,964.01
  4. Step 4: Simplify right side
    217,957.02x = 70,194,386,956.16
  5. Step 5: Solve for x
    x = 70,194,386,956.16/217,957.02
  6. Step 6: Final answer
    x = 322,056.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.