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Finding the Fourth Proportional to 318,568.94, 439,626.38 and 175,334.07

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Solution

The fourth proportional to 318,568.94, 439,626.38 and 175,334.07 is: 241,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,568.94 : 439,626.38 = 175,334.07 : x
  2. Step 2: Convert to fraction form
    318,568.94/439,626.38 = 175,334.07/x
  3. Step 3: Cross multiply
    318,568.94x = 439,626.38 × 175,334.07
  4. Step 4: Simplify right side
    318,568.94x = 77,081,482,484.77
  5. Step 5: Solve for x
    x = 77,081,482,484.77/318,568.94
  6. Step 6: Final answer
    x = 241,961.70

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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.