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Finding the Fourth Proportional to 243,586.69, 336,155.72 and 136,174.61

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Solution

The fourth proportional to 243,586.69, 336,155.72 and 136,174.61 is: 187,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,586.69 : 336,155.72 = 136,174.61 : x
  2. Step 2: Convert to fraction form
    243,586.69/336,155.72 = 136,174.61/x
  3. Step 3: Cross multiply
    243,586.69x = 336,155.72 × 136,174.61
  4. Step 4: Simplify right side
    243,586.69x = 45,775,874,229.79
  5. Step 5: Solve for x
    x = 45,775,874,229.79/243,586.69
  6. Step 6: Final answer
    x = 187,924.37

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1.5x scale

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.