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Finding the Fourth Proportional to 273,443.81, 377,252.78 and 170,071.20

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Solution

The fourth proportional to 273,443.81, 377,252.78 and 170,071.20 is: 234,636.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,443.81 : 377,252.78 = 170,071.20 : x
  2. Step 2: Convert to fraction form
    273,443.81/377,252.78 = 170,071.20/x
  3. Step 3: Cross multiply
    273,443.81x = 377,252.78 × 170,071.20
  4. Step 4: Simplify right side
    273,443.81x = 64,159,832,147.58
  5. Step 5: Solve for x
    x = 64,159,832,147.58/273,443.81
  6. Step 6: Final answer
    x = 234,636.26

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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.