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Finding the Fourth Proportional to 353,515.39, 530,356.11 and 116,858.06

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Solution

The fourth proportional to 353,515.39, 530,356.11 and 116,858.06 is: 175,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,515.39 : 530,356.11 = 116,858.06 : x
  2. Step 2: Convert to fraction form
    353,515.39/530,356.11 = 116,858.06/x
  3. Step 3: Cross multiply
    353,515.39x = 530,356.11 × 116,858.06
  4. Step 4: Simplify right side
    353,515.39x = 61,976,386,123.75
  5. Step 5: Solve for x
    x = 61,976,386,123.75/353,515.39
  6. Step 6: Final answer
    x = 175,314.53

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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.