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Finding the Fourth Proportional to 333,690.30, 460,123.62 and 212,639.85

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Solution

The fourth proportional to 333,690.30, 460,123.62 and 212,639.85 is: 293,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,690.30 : 460,123.62 = 212,639.85 : x
  2. Step 2: Convert to fraction form
    333,690.30/460,123.62 = 212,639.85/x
  3. Step 3: Cross multiply
    333,690.30x = 460,123.62 × 212,639.85
  4. Step 4: Simplify right side
    333,690.30x = 97,840,617,538.26
  5. Step 5: Solve for x
    x = 97,840,617,538.26/333,690.30
  6. Step 6: Final answer
    x = 293,207.86

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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.