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Finding the Fourth Proportional to 206,381.16, 309,572.16 and 56,623.52

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Solution

The fourth proportional to 206,381.16, 309,572.16 and 56,623.52 is: 84,935.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,381.16 : 309,572.16 = 56,623.52 : x
  2. Step 2: Convert to fraction form
    206,381.16/309,572.16 = 56,623.52/x
  3. Step 3: Cross multiply
    206,381.16x = 309,572.16 × 56,623.52
  4. Step 4: Simplify right side
    206,381.16x = 17,529,065,393.20
  5. Step 5: Solve for x
    x = 17,529,065,393.20/206,381.16
  6. Step 6: Final answer
    x = 84,935.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.