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Finding the Fourth Proportional to 335,885.74, 463,617.68 and 221,248.06

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Solution

The fourth proportional to 335,885.74, 463,617.68 and 221,248.06 is: 305,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,885.74 : 463,617.68 = 221,248.06 : x
  2. Step 2: Convert to fraction form
    335,885.74/463,617.68 = 221,248.06/x
  3. Step 3: Cross multiply
    335,885.74x = 463,617.68 × 221,248.06
  4. Step 4: Simplify right side
    335,885.74x = 102,574,510,016.42
  5. Step 5: Solve for x
    x = 102,574,510,016.42/335,885.74
  6. Step 6: Final answer
    x = 305,385.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.