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Finding the Fourth Proportional to 354,085.74, 531,285.57 and 185,565.99

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Solution

The fourth proportional to 354,085.74, 531,285.57 and 185,565.99 is: 278,431.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,085.74 : 531,285.57 = 185,565.99 : x
  2. Step 2: Convert to fraction form
    354,085.74/531,285.57 = 185,565.99/x
  3. Step 3: Cross multiply
    354,085.74x = 531,285.57 × 185,565.99
  4. Step 4: Simplify right side
    354,085.74x = 98,588,532,769.76
  5. Step 5: Solve for x
    x = 98,588,532,769.76/354,085.74
  6. Step 6: Final answer
    x = 278,431.24

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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.